James you are too pessimistic:
There are already 4 million US patents in force on human genome sequences (almost as many as all other patents put together).
Having basic knowledge in private hands can skew the outcomes. For example, most gene therapy products are being designed to be administered repeatedly rather than as one-time cures (This is clearly better for business). The pharm companies can do this because they own the rights to the basic science. Anybody coming up with a one-time cure will hit a legal wall.
Climate Science is subject to similar agendas... the only real defence is to back public spending on basic science to prevent it being highjacked.
I'd be very interested to know where that four million figure came from, Wing Z. It would fit in to some other things I'm doing. If you could shoot me a link I'd really appreciate it.
JAMES