I hope not... at least in such a case I doubt the'd ban the account, because it could become profitable in the future.
It doesn't matter in the sense that you can join even with a single page you just created and loaded on the web, with no SE knowing about it yet. It does matter though, as you need traffic to make money, and SEs will bring you the most traffic, provided you have reasonable positions for your pages. ******************************************************* Weight Loss For Life - free diet and exercise monitoring tools, including calorie counters. http://health.drgily.com - health, nutrition and weight loss information. *******************************************************
The first site you submit is just a formality.. But avoid submitting a site with pop ups, and do not host it on a free hosting service...
Im still new to adsense but I would think it is not essential to rank top in google to make money with adsense...but to make big money it does really help