I've had absolutely no luck in activating it before Act 2-3 with Source Vampirism when used excessively. All previous information on obtaining the tag seems to be out of date.
That said the most I've seen it let you do is kick puppies, so you aren't missing out on much.
Edit: After some testing, I believe the game may track good deeds against bad deeds, ala fable. If you're a murderous dickweed and specifically avoid good deeds early on, it is possible to get the Villain tag early on; however good deeds are very easy to come by.
Last edited by GreatGuardsman; 08/10/17 04:33 AM.