Phillip Frost ($3.8 Billion)

Technically, this next person on the list didn’t practice his medical degree, but he did teach dermatology in college. So, he knows how to treat all those icky bumps and rashes that may appear (which is why showering is essential, yo) on your skin. Dr. Phillip Frost started his own pharmaceutical company called Ivax for $7.8 billion— which only proves that drugs, both medicinal and recreational, are expensive and makes one top person the winner in all this.
Frost then moved on to become the chairman of Teva Pharmaceuticals, with his net worth being $3.8 billion. Now, now— he’s selling good drugs. Don’t worry.