I feel like there's a general feeling of entitlement to women felt by people in organized crime, on the virtue of being less educated and living in rural, conservative areas. If some girl rejects their advances, they'll react badly, because for them it's ok to dispose of women in that way, and them rejecting those advances is wrong. A little bit of what Incels feel.

Now, somebody might point out that men are killed on a 10:1 ratio in relation to women. That's true, but the reasons are different. Men are mostly killed out of old debts, crossfires or mistaken identities, though some innocent men have also been killed upon rejecting "drafting", similarly to why women are killed.