I do think this kind of tendency is fairly common. Most humans find it easier to be kind and giving when everything is going well for them. And conversely most humans, when their life starts going to shit, really find it difficult to care about other people’s problems.

Of course there are examples of people who are going through the worst time ever and still manage to muster up empathy and patience for others. I think people like that are remarkable because they are not the usual.

(Not to defend Dwayne Johnson, I have no feelings at all about him or knowledge about what he has and has not done. Just a side note thought)