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Olesia Ulianova

Soft skills Trainer and Education Manager

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Harvard Research: How Toxic People Destroy Workplace Culture

November 15, 2025 By Olesia Ulianova

A large-scale study by Harvard Business School, which surveyed over 60,000 professionals, revealed just how destructive toxic employees can be for an organization.
Their influence extends far beyond bad moods — it poisons the entire corporate ecosystem, undermines motivation, and directly reduces business performance.

📊 Key Findings:

  • 38% of employees admitted they deliberately worked below their potential to avoid criticism or conflict.
  • 25% said they had clashes with clients due to internal tension and negativity.
  • 78% reported a drop in engagement because of toxic colleagues.
  • 66% saw a decline in productivity.
  • 63% lost valuable work hours simply avoiding their aggressor.

In short: one toxic employee can cost the company more than several low performers combined — by spreading fear, disengagement, and stress.

🔺 The Karpman Drama Triangle: Why Toxic Dynamics Persist

Psychologist Stephen Karpman developed a model that helps explain the hidden emotional games people play — often unconsciously.
It’s called the Drama Triangle, and it remains one of the most accurate lenses for understanding toxic interactions.

How It Works

There are three recurring roles in this triangle:

  1. The Persecutor (Aggressor)

    • Controls, criticizes, humiliates, or manipulates others.
    • Uses sarcasm, pressure, or moral superiority to dominate.
  2. The Victim

    • Feels powerless and helpless.
    • Refuses responsibility and waits for rescue.
    • Believes, “Nothing depends on me.”
  3. The Rescuer

    • Jumps in to “save” the Victim — often unasked.
    • Puts others’ needs above their own, leading to exhaustion and frustration.
    • Feels worthy only when needed.

The Cycle of Toxic Interaction

  • The Aggressor exerts pressure → the Victim collapses under it → the Rescuer steps in.
  • The Rescuer soon becomes overwhelmed and resentful → may turn into a Victim themselves.
  • The Victim might start blaming the Rescuer or even act as a new Aggressor.
  • And the cycle continues — unless someone steps out of the triangle.

How to Break the Pattern

  1. Recognize the role you’re playing.
    Awareness is the first step to freedom.
  2. Refuse to take part in the game.
    Don’t rescue, don’t persecute, don’t play the victim.
  3. Take ownership.
    Speak in “I-statements”: “I feel,” “I need,” “I choose.”
  4. Build boundaries.
    Say “no” clearly and calmly. Protect your emotional energy.
  5. Encourage adult-to-adult dialogue.
    Replace blame and rescue with clarity, responsibility, and respect.

In essence:
Toxicity thrives on emotional dependence.
The moment you step out of the triangle and take ownership — you break the cycle.

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Filed Under: Leadership and Management, Soft Skills Tagged With: stress, stress management

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ABOUT

Olesia Ulianova

Ph.D., MBA, CEO of Telesens, Founder of IT Grow Center (ITGC)

I am a trainer, coach, and leader with over 15 years of experience at the intersection of technology, management, and people development.

My mission is to help leaders and teams become more effective, adaptable, and self-aware in a world that changes every single day.

🔹 Ph.D. in Technical Sciences and General MBA — a combination of systems thinking and strategic management.
🔹 CEO of Telesens — over a decade of experience in IT business development, organizational transformation, and building high-performance teams.
🔹 Founder of IT Grow Center (ITGC) — a space where future managers, trainers, and leaders grow.
🔹 MBA in Business Psychology — a deep understanding of human behavior, motivation, and management psychology that helps build mature teams and lead change effectively.
🔹 Author of the “Antimanager. Soft Skills Guideline” series — a trilogy on personal development, communication, and leadership.
🔹 Member of the International Association of MBAs (UK)
🔹 Certified Coach (ACSTH/ACTP) and former USAID mentor.

 

My approach is built on a simple belief:

“Everything is possible. The impossible just takes a little longer.”

I believe that growth begins with an honest dialogue with yourself, and actual effectiveness starts with inner balance.

In my blog, I share practical tools, transformation stories, and proven methods that help managers and leaders act consciously, avoid burnout, and achieve more — both in business and in life

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