Can $ Buy Social ?

Understand from TechCrunch that Del.icio.us Competitors Try Paying Users , Simpy did it by allow user to put google ads on their user page , Rawsugar is paying directly to user base on popularity  , its seem like the fight between social bookmarking been pushing to another new level.

But this raise a new question, we all know that the power of social bookmarking is on the social part, which is about user sharing and interacting. So by using $$ strategy like this will it able to buy more social ? or what kind of social quality will be getting under this kind of market strategy ?

Lets see will this flame spread across other social web application.