You need to know why "they" are doing "it". But yeah, if "it" is something "they" can afford to stop, then yes.
IEEE is famous enough it would survive even if this was a small market negative.
It's more problematic with low-end products made by child labor for instance. If they couldn't compete with other child-labor products they'd go out of business. There you need to do a more comprehensive blacklist or you're just swapping the devil you know for the ones you don't.
