I agree wholeheartedly that breeding should never be about creating a name. It should always be about creating a more potent and/or more stable strain.
We can say it doesn't exist all day long, but at the END of the day, purple haze seeds will still be available.
I believe we should accept the fact that this strain exists, so we can warn people that it sucks.
As you say, there will always be breeders who are motivated by profit, so let's deal with that as a community by some other means than denial.