A lot of (most?) innovation is driven by problems that need solving. It's a lot easier to start a company if there is already a large audience that really wants a problem solved and are willing to pay for the solution.
Having an amazing novel idea and then convincing people not having it in their life is a problem is way harder
"Complain" sometimes takes on the nuance of unproductive whining (repeatedly bringing up problems that others in the situation cannot fix), entitled attitude (why aren't things such and such: everyone around me should accommodate to me), excessive focus on minor things (I hate this whole situation that I can't change, and I can make that constantly known by harping on minor aspects) and such.
Having an amazing novel idea and then convincing people not having it in their life is a problem is way harder