This reminds me of a joke from early 90s "wild capitalism" era in Russia.
Two former classmates meet, one is a poor engineer, another is a "new russian" type cool businessman.
New Russian: Oh, great to see you, how are you doing?
Poor Engineer: Life sucks, no money etc. etc. But look at you... You were the stupidest student in the class, and look at you now. How do you do it?!
New Russian: Well, running business, you know. Buying beer kegs for $100, selling them for $200. This 2% margin is what I live on.