The academic success is not a warrant for one to succeed in business. Talents have different forms.
It is not rare that a straight A student in a prestigious college will be successful in the future.
It simply reflects his or her hard work during college. If he or she wants to excell in the future, one needs strive to engage him/her in the new battle.
A was is comprised of many battles, and life is full of wars:)...
Even if one is successful in achieving all As in the college.