No, don't. Spam is offensive to most because the advertiser is externalizing part of the cost of the ad. The spam victim pays for network transmission and disk storage. The spammer offers no choice - the externalities are involuntary.

Lick the lollipop of spamming once and you'll suck forever. Once you've decided to steal resources from a large number of victims, you can justify just about any other morally reprehensible act.