A rough google tally:
AIDS denialist 13,100 hits
Big Tobacco denialist/ Big Tobacco denialism 0 hits
Holocaust denialist 486 hits
Holocaust denier 306,000 hits

So there are 486 hits on Holocaust denialists who are getting some personal gain from their denailism, but 306,000 google hits on Holocaust deniers who are not getting personal gain from their denialism? Is that what you maintain? And "Big Tobacco denialism" actually gets 0 google hits because it is so well known those denialists are doing it for personal gain? And so on and so forth. This is ludicrous. Give it up.