Your examples are either fictional or historic, I don't think it's the same when you are contemplating a recent or contemporary person, there are a lot more considerations involved.

Actors play the parts in which they are content to be cast, balanced against their need for the money:)

I am most surely not an actor as the processess involved in portaying another person are way outside of my comfort zone.

Not wishing to cause controversy here, merely stating my predjudices and how they affect my reasoning. Probably to complicated a process to even start working out the root causes of my predjudices, suffice to say that Mrs Thatcher's actions and policies seem to me to have considerably erroded the potential happinesses in my life.