A group of elites/privilege/whatever competing within a specific domain.

Even if you lose, you're still in the group and get certain privileges.

Keeping the wealth in the group is key.

I'm not a Bernie Bro, but he's not a bad example in this case - he represents interests outside the monied/corporate group, which although it competes across Democrat/Republican political lines, shows class solidarity when people want to, say, regulate Wall Street more, or enact universal healthcare which would hurt the bottom line of healthcare companies.

I'm sure my explanation above has its flaws but I hope it shares the gist of what I was trying to express.