You're correct in principle, but this needs going deeper into relevant human traits.
People that could push this sort of a change require to have a combination of a specific traits. First one is ability to do complex future planning and sacrificing short term for it. Very small percentage of people in total are capable of this. A large plurality if not outright majority barely has a conception of the future if at all. Of those that remain, clear majority has problems tolerating the sacrifice (see: obesity "epidemic") needed for long term gain. Even when gain is massive elevation in quality of life and survival.
And even for people who can do what you describe, the gain must be clear and unambiguous. To go beyond that, you need to go to a different trait, that being risk tolerance. This trait is independent from the future planning one.
Finally you have the actual ability to what is needed to secure those long term gains.
So the people who could tolerate high risk and are capable of imagining the future and capable of sacrificing in short term for it and have the ability will genuinely invest only in things that have a massive return. Because there's so few of them, and so many opportunities they can direct their unique talent set towards. So because they walk rather than crawl for lulz, they will invest their time and effort only in most efficient things.
Causes like you speak of have such low returns compared to alternatives where such people could orient their effort towards, these people will not even look at them twice. All you get is ideological, highly disagreeable weirdoes who ride generally lack one or several of required traits to enact the kind of thing you are talking about at scale you're talking about.
And so, we get status quo. Because it's human.