Then you get into simply awkward standings corners: how do you explain being blue to Cartel loyalists (Naraka. in my case, this was an alliance-level thing btw) while holding a -9.something Angel Cartel standing to someone who doesn't know how just how cheek-by-jowl Curse's main pipe is?
Simple.
You killed Angels. Lots and lots of Angels, obviously, to get that ranking.
Angel's leadership and VIPs are pragmatic (and ruthless) enough to not really care what you did in the past. They want profit, and they want capsuleer allies who will do the things they cant.
The rank and file? The average Angel Joe who might have lost friends, family and money to you in the past? They hate you, but their opinion doesnt really matter.