Speculation. Vinny fucked Arieth first. What if he felt more for Arieth? Actually, all the DIKs, except for the MC, can fuck Arieth or have fucked her. That could be a reason for Vinny to take revenge on the DIKs. Then it would also fit, so that he plays the DIKs and Alphas against each other.
But by itself, I don't think so Vinny came to the Mansion for the drugs. He sells more than Quinn and it won't hurt him to lose four strippers as customers. Unless the Lily or another stripper sold drugs to the customers for Vinny at the Pink Rose. Then that hurts Vinny.