Some software developers make the world a better place. Many produce software that ultimately not that useful, and in the worst case scenario, actively harmful to society. Is the world a better place because of Apple, Amazon, or Google? Eh, you can make an argument either way. Is it a better place because of Facebook or Twitter? Unambiguously no.
Unfortunately, most of they ways in which they do so were already done in the 70s. It's just repeating that work in more modern languages / stacks.