It seems that 薄瓜瓜是騙子. The awards and scholarships he won were created for him only. One evidence is that he is often the "first-ever" winner of an award. After winning, the award disappeared. Namely, it is not given for the next year and any other time.
So these scams work like this. They donated a large sum of money, e.g, $5 million, to an institution, such as Harvard, with one condition: a small portion of the donation is used to support a specific person to study there. They called it XYZ-award. There is no competition for the award.
In addition, Guagua's "famous" activities do not include anything based on merit or fair competition. They are mainly things like being a member of some committee or organizing some activities. I am curious about his transcript.