I honestly don't think this reasoning makes sense. Most people raise investment because it shifts the risk ratio in their favour ("get paid to survive and work

I honestly don't think this reasoning makes sense. Most people raise investment because it shifts the risk ratio in their favour ("get paid to survive and work on their own idea"), at least in the early stages. If you're doing this, either: 1) both don't take any salary and use the raised money to build out the business (this is really how it should be), or 2) both take the same salary. All the rest makes no sense to me and will most likely cause friction, unless one of the founders is already wealthy.