I just like efficient systems, both programming and organizational. Having bloat so to speak just annoys me.
Making open source tools is not something I'd consider bloat, I'm talking more about those in the book Bullshit Jobs by David Graeber.
Having fewer people also leads to people achieving more, ie one company with 1000 employees versus n companies that are 1/n the size, I'd say the smaller companies are much more likely to produce innovations that are useful for society as a whole.