Aaq, I don’t think it’s a desire for geneiva, I think that in mamonis issues with goyim or especially with corporations and/or the govt, we are not to waste our money or forego opportunities that are allowed according to halacha, especially if in doing so no chilul hashem would arise.
Shmiras aynayim is not something we seek kulos in.. it’s part of the yesod of kedushas yisroel.