There’s a lot of wealthy oligarchs living in luxury who wouldn’t want their lifestyles threatened/ended by nuclear war. Similarly, Putins chain of command can’t be poor and dumb. They also have comparable luxury and lifestyles, and are smart enough to understand that nuclear war most probably would end everything they have. Putin himself is an umpteen billionaire.

Just sayin’, these people that control the nukes have the most to lose if they use 'em.