You can be fine with the innovation and entrepreneurial spirit of capitalism and still favor a wealth cap and abolishing laws like Citizens United that give money undue influence on politics. Extreme wealth concentration actually hurts capitalism by starving the spending economy of money. It's a defect in the system that eventually spoils the system.
Innovation and entrepreneurship is not exclusive to capitalism. People innovated and undertook ambitious projects before capitalism, and they will be doing so after it.
There is nothing inherent to the private ownership of the means of production and the wage exploitation/human rental system we have now that mandates innovation and entrepreneurship. In fact the opposite is visible today, with big companies stifling innovation.