Prigozhin was a very different case, not that many people have their own paramilitary organization to defend them. Only other such person I can think of is someone like Kadyrov.

Yea, had it been Kadyrov I wouldnt rule out assination. But no such important person in russia flies commerical.

You mean the guy that had his own army, and had support by a large chunk of russia? The guy Putin had publicly said would face no criminal consequences?