This reads like someone complaining about the time requirements to be a member of a top athletic club or top kitchen or top theatre or any other highly demanding discipline. The only way this behaviour would be "wrong" is if candidates were mislead when they entered about what would be expected of them. If you aren't willing to sacrifice, then don't. You can make a rational choice and walk away with your pride and fu…
We had one like him few years back. One person in a large team was enough to demoralize all, team lead dropped out, few left. All this took months. Yes that one guy was marginally more senior, but the abuse cost a lot more in team productivity output than the seniority experienced output of that one problematic employee.
So yea, if it was my call, people like that will be out asap and off to be given proper medical help, rather than poisoning the team environment for everybody.