They say that someone asked the K’tzos why in yeshivos they learn his chiddushim on choshen mishpat and not the nesivos. He answered that when he wrote his chiddushim, the ink in his pen was frozen because it was so cold in his house. The toil he went through was greater in that aspect than the nesivos’, who was rich and never had that issue.
This story shows that a poor person will have greater zchusim for doing the same mitzvah with much more tza’ar, though it doesn’t validate what the OP is implying, that rich people are Reshaim.