I have problems with talents like this. It's something any player should just be able to say to me "I'm going to offer some money to persuade them". I should also be able to say "well-disciplined and indoctrinated storm troopers never countenance bribes" when appropriate. I don't like talents that suddenly decide how my setting or characters are.
Like the Greased Palms talent? I sometimes visualise the narrative behind the game effect of stuff like that as maybe you're not offering the NPC you're talking to a bribe. Instead maybe it's a flashback to you bribing a grunt or administrator or servant for clues about what your target's likes/needs/fears/trusts - and that is what'll help you Charm/Negotiate/Coerce/Deceive the NPC you're now talking to in the present.
Edited by Col. Orange