Yeah, we had that at one of my previous employer. Some guy was really a 20x dev. But he did it at &quot;all costs&quot;. That meant working from home, not attending meetings, not answering emails, ignoring the PMs, not mentoring junior devs, not explaining how he did stuff, etc.<p>Now, we all hate a lot of the above stuff, and many companies handle these things better than others, but it did mean the only reason he was &quot;20x&quot; was because he didn&#x27;t do 90% of the stuff that was expected of everyone else.<p>Maybe the company culture needed to change, but until it did, everyone else looked really bad compared to him, even though they were essentially spending their time trying to deal with his crap without help.