Nothing in Stallman's philosophy precludes profit-driven development - on the contrary, he actively encourages it !
He precludes a certain METHOD of profit generation, not the idea of profit.
Your response is like saying "We can't have pollution standards because saying you can't make profit by dumping strychnine in my drinking water is the same saying you can't make profit at all".
There is absolutely no free software problem with profit.
Of course, and nothing I said is anything remote to your drinking water example. I did point out that profit drives much free software development; if only because it is difficult to maintain enthusiasm for development by volunteers over time or to get bugs fixed that are not of interest to the volunteers.
There is a freedom problem with software that are sold in one PARTICULAR bad way because the harms that it causes to the public far outweigh the profit earned by the seller.
The only thing Stallman has ever done is point out the age-old lesson that if you don't force the medicine seller to tell you what's in his medicine most of it ends up being snake-oil.
However, free open source software is not the only way to do that. The assumption that non-free software is bad and harmful and by extension free software is good and beneficial is incorrect on particle as well ideological terms. Stallman has a very narrow view of what software development should look like and even what constitutes "free." I simply disagree with the idea that his viewpoint is the correct one.