Really, it should. In every country.
There's no reason for you to advertise via email. Email is created for purposes of communication, account verification, and other things. It, however, is not, and was never made, for advertising.
I don't care about your "weight loss" or "snake enlargement" stuff. None of them have ever enticed me, and just use up space. Even worse is when they intentionally get through the spam filters, by typing.stuf.lik3.th!s. That should be even more illegal.
You can advertise in many, many various ways. Billboards, television, radio, internet (the non-email part), and much more. If you can't afford to buy a simple advertisement to the point where it's necessary for you to flood someone's inbox with stuff emails, you shouldn't be in business.
So, do I have a point? Or am I wrong?