I think you meant "the money" to make it through his college classes and get a diploma. It's amazing what a few million dollars can do, if you spread it around properly.
But the dyslexic or even illiterate can hire people to read the textbook to them. Then the professor wouldn't say they are dumb. Failing to do that when you have the money WOULD be dumb. The professor was talking about Trump's lack of understanding the basic course matter.