I'm struggling.
Seeing a story on them being locked up, losing their job, losing all their money and property and having to live like the rest of us, there are plenty of contenders. But they don't in general. The Establishment protects them and positively rewards them...I still haven't read the stories about how Danny Alexander is homeless and having to get by with the help of food banks and charity handouts, how Ed Balls is volunteering to clean up his local district with nothing more than a Community Service Order to impel him to do so, or what colour hoodie David Cameron is currently wearing and whether it matches his electronic tag.
That said, Thatcher and Cecil Parkinson's deaths give me nothing but pleasure to this day. But you did say "human" and the lack of compassion or soul of those particular two disqualify them from consideration.
Most politicians of the last 25 years haven't contributed enough for me to take pleasure in their deaths. On the contrary, a lifetime of ongoing suffering would make me smile in a lot of cases.