You could take that position. It's like mocking the light bulb though as hardly innovative because torches got the same thing done.
I get what you're saying, but I think the key point is execution of an idea. If it were so obvious and so easy, someone other than Nintendo or Apple would actually get it done once every few decades.
The billionaire argument isn't bs. If you actually had a great idea, or knew how to execute things well, you'd have either patents or products under your belt. It's just incredibly difficult to execute an idea in the real world. Most people, 99%, don't even have a good idea. The whole thing seems like if you "just had connections and resources" you could do it. But you wouldn't be able to. Most people actually do less with connections and resources. What would your grand idea be? Buy rental apartments? You certainly aren't going to be taking on Twitter when you can lose your millions doing it, and have no particularly amazing ideas for a competitor. Most millionaires don't invent things or execute complex ideas. They sit on the couch and contribute even less than if they were hungry with ambition. This applies to most of us, most likely including myself.
The millionaires are largely self-made, and were hungry with ambition. That's the portion I'm referring to in the last paragraph. The billionaires that keep doing things and making money like Musk are even rarer yet.