So, I had a thought... why are we assuming Vinny hates the Diks? Seriously, think about it, what is that based on? As far as I can tell, this is literally everything we know about Vinny:
-He and Nick were the first "maggot brothers", essentially co-founding the Diks with Rusty and Tommy.
-He and Tommy didn't get along.
-He was a wild party dude who trashed his room the first day at the mansion.
-He's involved in drugs somehow (it's still not 100% clear how, but he's obviously selling something to someone), and had access to drugs even back in the early Dik days.
-He is no longer at B&R. Contrary to discussions of dropping out, expulsion, etc., we don't know anything about why he left.
-Nick still sees him every now and then.
Except for him disliking Tommy -- and that's hardly an exclusive club -- we've no real reason to think he bears the Diks any ill will or has any reason to. He might, but we don't know. Furthermore, what if the assumption we've been making -- Vinny is waging a secret war against the Diks -- is an assumption Nick has been making also? All of Nick's suspicious behavior, which we've attributed to his being some sort of accomplice to Vinny, makes just as much sense as him ASSUMING Vinny is responsible and covering for his bro.
None of this is me saying Vinny is absolutely not involved in any of the Diks misfortunes, because I don't know any more than any of you, but I think we should remember that the idea of Vinny being some Machiavellian figure is still entirely speculative at this point.