Along those lines don’t they say about Rebbi that he had qishu’im on his table all year and that his stable keeper was richer than the king of Persia. But when he died his hands stayed open to be meramez that he didn’t have any han’ah from this world. (I might be getting the story wrong).
Anyway see Noam Elimelech. Most of what he speaks about is two levels of tzidkus- the higher being a tzadik who doesn’t fast all the time but rather always eats l’shem shamayim.