He would barely make it into IWM, much less be considered a big corporation.  The judgement is probably 50% of his net worth and not much of that is liquid (I think we all know part of his brand management involves saying he's worth more than he actually is).  They haven't figured out penalties high enough to punish large corporations like AAPL, GOOG and MSFT. They simply budget for it and easily absorb what we consider massive judgements - it's part of their business plan.