A founder lives their company as the most important thing in their life, it's an extension of their life and they live and breath the company. A manager instead is being given a responsibility and will try their best to fulfill the role. A founder will never rest if they know there's an issue to be solved in the company, while the manager has a life and know they can move forward in case. A founder will not be intimidated by any internal policy or rule if they believe they need to change something. A manager will try to play by the rules, and in case try to modify them through influence. A founder is basically a ruler who truly care about the success of the company (not necessarily about the happiness and fulfilment of the people taking part in the company). For a funder the Company comes first, before anything else.