If you already have the necessary skills and knowledge, and connections, then wasting years of your youth (when you have the most productive potential) in extended schooling is going to be a disadvantage. If.
Here in UK it's "well known" that going to a prestigious school like Eton is about being in one class with kids of prime ministers, presidents and oil sheikhs, so you have those connections for life and you can always call up on those. In that context going to university and studying almost anything could be a waste of time if you have someone who can help you get into places straight away.