Why have we developed a system of organizing engineering work that is based on engineers having to sell ideas to their colleagues?
Unless you're a 1 person company, nothing you do ever only impacts you.
Usually people say that people skills are as important for having lots of impact as technical skills, but the bar for people skills is really low sometimes I guess.
They are simply saying that any system involving multiple people will also involve people convincing other people to do things.
Do you have a system which doesn't involve that? Does it involve cybernetic implants and hive minds?