Some unsung heroes: - the person that discovered how to fix nitrogen in the soil saved more lives than every other people in history, combined. - Norman Borlaug, father of the green revolution, saved more than 1 billion people from starvation.
Millions of probably do owe their very existence to these men though, agree with that.
However part of me (maybe a slightly misanthropic part?) wonders if it might be a bit like feeding stray cats, and now we have a huge herd of cats that are rapidly outstripping the ultimate carrying capacity of their environment and it doesn't end well. But since I'm one of the cats, I say we just go with it and see what happens.