i would draw a line between how any president gets elected and how people have to navigate their own lives and careers.
trump's election is a true black swan event, and it happened in the context of many other things that have happened in the u.s. in the recent past. i would not take any lessons from that election in how you need to work through your own life, or for how anyone is to be successful.
& frankly, if you look at how his presidency is being judged and how he's perceived, i'd suggest that does not make an argument for long term success either.
if trump loses the election & is regarded by history as a disgrace and a failure, is he still a success?
as for all of those other things you say in the last paragraph: that's often true. nirvana is not for this world, and people do take advantage. but i would not suggest you take those cases and use that as a means for working through your own life, or believe that you can get somewhere doing things like that. you're more likely to find yourself cast aside and in the employment dumpster if you act as if this is how things are to be.
i think your own views here are really an ugly caricature of how the world actually works in the main, & if you actually spend time within organizations of any sort, you'll see that most of the people who achieve lasting success do so because they do things that are valuable: they're skilled & behave honestly & with integrity.
and if you think that being an ugly person, doing dishonest or unethical things is the only way to win, then you've probably already lost.
& as i think you've already conceded, it's surely not the only way to win. there are people who succeed without being unethical, & it's surely better to rise & succeed while doing well than rise while being rotten.
i'd hope we can at least agree on that.