Earlier quoted context omitted.
You are missing the subtext of that narrative - Trump did none of those things. People around him and behind him are responsible. I'm not saying that is true (probably is) but it explains how a dullard with his dad's cash can achieve what he has.
All billionaires have an army of support. Even if Trump didn't handle the details, he was still on the forefront on high end deals, not sitting in the back and letting some CEOs do them (which many heirs do). Lots of dullards with dad's cash just spent it on women and booze or lose everything, Trump kept it (if he didn't increase it, considering the bankruptcies and re-emergences) and made his name a kind of brand. H…
The only other unexpected, unseasoned political opponent to defeat the Clinton machine was another political genius named Barack Obama.
Simply by winning the presidency both of these guys have demonstrated a political genius rarely seen in US politics.