Many people who are filthy rich by being corporate asslickers, the human trash that get paid huge amounts for manipulating the masses, and other similar people don't own anything yet they can hardly be called part of the proletariat.
Are they petty bourgeoisie or an exception of the working class that works against it?
class traitor. we can run around the bushes all day fussing about the exactitudes of relationships, if they own enough capital to be 'technically' petitbourgeoisie or whatever
but the simple version is that someone who is fed by their labor is working class, and if that labor is against the working class they're a traitor. and you don't gotta be particularly well compensated to be a traitor anyways---cops used to be paid peanuts and they were traitors then too.