Those are numbers for filed LCAs (a necessary step prior to filing for an H1), and not the actual numbers for approved H1s.

It is clearly being abused by outsourcing companies.

Also take a look at average salaries for true technology companies and outsourcing companies.

Perhaps there should be a minimal salary floor. Or perhaps some sort of auction based on salary instead of a lottery.

I don't think there is a quota limit per employer/sponsor.