So, more savings isn't always the solution, but more earning sure is the solution.
I don't think you can say that one is more important than the other. The right way is certainly a mixture of more saving or investing and trying to increase your income at the same time. And another important point that came up a bit too short in the discussion is to reduce your expenses as much as possible.
You can’t save and invest at the same time if you cannot manage your expenses well. Know what’s necessary to buy and ignore that are not. With that, it’s highly possible that you can save a lot. However, saving should not be the last option but certainly investing in bitcoin or any other potential investment that is capable to give you high returns. When you invest, you will have something to gain and earn, but if you focus more on saving and let your money sleep in your bank account, you are only helping the banks to get richer while they offer your money to other people.