Earlier quoted context omitted.
I don't know, I would say it's certainly debatable. Would things really be that different had he not been there? Could someone else done a similar job for say, only $50 million (and the same compensation due to options)? I don't have any particular opinion in this instance, but discussions of this nature seem to be forbidden for some reason.
I don't think you can second guess like that, since there is no way to answer the question. In a world of infinite possibilities (second guessing the past), everything is possible but meaningless. All you can do is ask "Did he accomplish his job in such a way as to deserve earning $100M over the course of 10 years?" I think the answer to that is probably yes.
"Did he accomplish his job in such a way as to deserve earning 6 billion over the course of 10 years?" Seeing as he has a 9.6% share of the company which he has acquired over the past 10 years as reward I suppose for the job he has done.
And then you can ask, did he deserve a 100 million gift on top of the 6 billion.