You seem to be confusing high-status creep and low-status creep. The latter, which you describe, happens among desperate low-status men (rarely other genders), is characterized by misogyny and a sense of thwarted entitlement, is obvious to outsiders, and makes then even less desirable partners. Hanging around women is usually promoted as a cure, and looks like it works. I see little evidence for or against this being evolutionary or cultural.

The former happens among predators, who often (not always) are high-status because they're driven to be, is characterized by a sense of entitlement that is denied but acted on (by flouting norms and personally-imposed boundaries on interaction, especially sexual), and works in the sense that it gets the creeper lots of dubiously consensual sex while avoiding social blame. This seems to be a straightforward outgrowth of "Screw the rules, I have status".