I've seen a lot of snakes, but in my experience it is more common for them to be incompetents - throwing wrenches into productive people's work to distract from

I've seen a lot of snakes, but in my experience it is more common for them to be incompetents - throwing wrenches into productive people's work to distract from the fact they are a fraud. UX and marketing people are the most common because it's harder to be a poser programmer and not get caught (though I've seen several of those as well.)