Doesn't it scare you that your actual product is written by someone else? As i am moving away from what is called IC positions in silicon valley, i am increasin

Doesn't it scare you that your actual product is written by someone else? As i am moving away from what is called IC positions in silicon valley, i am increasingly afraid of this. The projects i am passionate about and responsible for are actually developed by other people. And these are people whom I know are at least as good at if not better at the job than me.