To the OP, welcome to the world of marketing. Note I didn't say marketing "on the internet" because the exact same practices are used both off-line and on-line.
With a few exceptions, there are two overall types of product that get marketed. Stuff people need, and stuff people don't need. For the stuff people need (i.e. groceries, gas, clothing) you don't need a hard or deceptive sell because people have to buy the stuff anyway. You just need to convince them that your product/service/store is better than the guy's next door. People are going to spend this money no matter what, you just have to find a way to get that money that's going to be spent anyway.
When you step into the world of selling stuff people don't need, you have to do a hell of a lot more to convince them to buy your product, because they don't really need to spend that money in the first place. To get their money, you have to convince these people they don't just want the product, but that they absolutely need to have it. To do that, you more or less have to trick them into buying your product/service. There's no other way, because you gotta make these people believe that your product/service is more necessary than food/gas/etc.
The trickery comes in many different ways. You can either exaggerate your product/services features, or you can prey on the weakness of your potential customer. This applies ACROSS THE BOARD. Is Shamwow really a better shammy? Will a dating service really guarantee you'll find a mate? Will you really get free money from the government? Can you really lose weight with a pill? Is any Disney pre-fab pop sensation really that good? Can you really get a free ipod? Will that juicer really solve all your health problems? I can go on, but the resounding answer is NO.
But that's marketing... offline or online. The difference with on-line marketing, is you cannot conveniently buy the necessities like gas, groceries, etc. So all that's left in on-line marketing is the stuff you don't really need.
If you can't accept this, you are definitely in the wrong industry. Not just on-line business, but marketing in general.