Well he was a textbook high performing sociopath, if that's a coined medical term. Very low emotional EQ, very high IQ, and the ability to rationally turn some part of EQ on if motivation is high enough... but nothing of that comes naturally and in stressful situations its elephant in the porcelain shop.

His biggest regrets before dying is how he treated his own family when looking back - again a textbook of what I write above.

Some people have immediate kneejerk reaction to the part with "sociopath" but I don't look at it as some sort of insult, rather just description of certain quality or lack of it of given person. No need to dance around the fact with many words, it is (was) what it is. If he knew better he would do it, nothing one can choose easily. And there would be some negative impact on his professional life, no doubt (some positive too but if you look at ultra rich guys not only in tech, they are +- the same stuff, it seems this is really prerequisite to rise meteorically, nice guys normally don't make it that far).

musk is similar albeit another unique mix of above. Bezos too. And so on and on.