While Google and Facebook's fundamental business model is ads, they don't invest their R&D percentage wise as how much they make from ads. Google at least does

While Google and Facebook's fundamental business model is ads, they don't invest their R&D percentage wise as how much they make from ads. Google at least does pursue a lot of moonshots, and is by all accounts the closest to true self driving cars. Both tried to bring internet access to parts of the world that never had it. Apple changed the world with the iPhone and is trying to do it again with AR/VR devices. Amazon leads the pack in cloud computing, which itself is a massive force multiplier for other tech innovation AND a sustainable energy use bonanza (Cloud platform are massively more efficient with energy usage than individually operated bespoke data center solutions). While I agree with you in a lot of specific situations (especially everything with crypto), I do think a lot of big tech companies ARE trying to make a meaningful dent in big societal problems