This worker, who was the sole person at the company who was capable of doing his job, ended up on the wrong side of a malicious manager. When the manager made an extremely obvious error and let an entire (now unstaffed) department fall over he was sure to hang it on u/PeaceNGrease.
The thing is... since u/PeaceNGrease was the only person capable and qualified of doing his job, they quickly realized that they were going to lose millions of dollars. Which left u/PeaceNGrease in the ideal position to negotiate a high contracted rate to train the new hires.
The big takeaway from this story seems to be that he should have asked for more. But $20,000 is a pretty penny and will pay for a nice vacation that he wouldn't have gotten otherwise!
For more stories about appalling management check out this guy's story about being fired for asking for a raise.