Higher salary usually means higher spending, ie paying other people to work. It seems to me that is much better than 'investing' aka buying ownership of people

Higher salary usually means higher spending, ie paying other people to work. It seems to me that is much better than 'investing' aka buying ownership of people's work. I mean, unless there's continual 'investment', someone has to actually pay for the work people do at some point, not just keep buying/paying for ownership of the work/profits they make.