This sentiment, exactly - although I will say our family lives are probably pretty rare. My father was/is a successful lawyer and my mom had her own thing going for quite some time as a painter so I rarely ever "saw them". Whenever it was important though they were there, present, non-judgemental, and loving.
He does have too much hero worship going on - the example in the article of Bill Gates proves this. Bill is maintaining a healthy family life (as far as one can tell that doesn't know him or his family) and he's doing "sci-fi s$#t" (thorium reactors? curing malaria? MICROSOFT!?!).
Judging billionaires is silly - if the OP thinks there needs to be more Elon Musks in the world then he should be working on it. I personally don't think we need more of any person in the world; they are all fitting in precisely where they should be.