I think the reason this indictment is tolerated is precisely due to it not being about any of those things. Anyone who wants to be President will be comfortable doing all the things you list, and probably worse we don't know about, but they are also generally savvy enough to keep their non-political crimes plausibly deniable. So, go after Trump specifically when he wasn't able to do that much.
100% even if Clinton had done something similar with his sex stuff and got charged that doesn’t mean Bush/Cheney would have been more likely to be held legally accountable. Especially at a time when it mattered.