I don't think your viewpoint is really as far off from Gates as you pretend it is. Remember that he's also offered financial incentive for birth control / std prevention[1].

What alarms me is that there seems to be the morbid implication in your words that disease serves as population control. Improving quality of life and reducing unwanted pregnancy are parallel and not incompatible efforts. And I think they are two of the most important challenges of our generation.

[1] http://www.psfk.com/2013/04/bill-gates-condom-challenge.html