If he can't invest it more profitably than we can he will give it back. He has plowed it all back into the company because he has found assets to buy. Warren has built the #5 company in the country in ONE lifetime and he isn't done yet. Perhaps we should just say thank you and let him do his thing. If you want to second-guess something the world is full of worthy targets. Warren Buffet and Berkshire are not one of them.
You obviously don't know the basics of arithmatic. Did you even read Warren's annual report in which he showed why it better for shareholders to have the money reinvested in the company, instead of giving it back as dividends? Or do you believe that the sun orbits the earth, and evolution is a liberal myth?