Because Apple paid to produce that knowledge? It's good that people can spend a lot of time and money developing new knowledge and then for some period of time they get to exclusively reap the rewards of doing so.
Do you mind if I MITM all of your work output, your emails, your code, your messages, and attach my name to it and then receive your paychecks in exchange for my work?
Do you mind if I MITM all of your work output, your emails, your code, your messages, and attach my name to it and then receive your paychecks in exchange for my work?