it affects you morally. one could say the same about a pedophile or rapist or racist. let's say someone was all 3 of those but you knew it wouldn't affect the business you do with them. would you do it? this isn't to equate them but it is to see if you argument holds up in an edge case. I don't want to associate with, or have someone benefit from my labor, or even profit from their insights if I have such moral disagreements. but some people don't care about morals at all and only care about profit so to them it may not matter.