Is it that his parents gave him emeralds for an allowance when he was a teenager and this led to more means and agency than is common for normal people?
Being born rich is not enough of a reason. There are many people that are born rich yet he's unique, even among the rich.
The other day I read an article where his father was praising his brother as the better son, in public. I suspect there's a father and son issue that pushes Elon to constantly prove himself. Never under estimate family issues as a person's success or failure in life.