Lottery pleasure is empty. Play poker with friends, you may loose money but at least you get friends.
The problem pointed in Kahneman book is that we are irrational, and (AND) it's usually the less irrational among us who win.
Okay, but small is relative.
For example, an insurance company has to pay for investigators, the number of which would likely scale linearly with customers.
Nice offices and an advertising presence are also likely necessary to entice and maintain customers, probably more-so an an industry like insurance in which there aren't many tangible differentiators between competitors (see Coke vs Pepsi).
I don't see why insurance should be any different than any other industry regarding these issues and also the existence and legitimacy of profits (assuming they weren't derived from fraud).
Moreover the fact that insurance are highly regulated just makes my point. We are defenseless and the law puts some limits because a scam is too easy to build.
And I don't say you shouldn't pay for your own protection, I say you can't evaluate the risk correctly and are very likely to be ready to pay too much. Which is how insurance make money.
Lottery isn't really a scam either if you derive pleasure simply from playing the game.