Of course WeEconomy is an amazing idea, there is no doubt but the problem are people. The network of people must be full with honest and smart people. That's where the online WeEconomy fails sadly. From your post as far as I understood that profit will be used for gaining even more profit by creating some business and etc or if you only mean growing number of capital via people and doing nothing more, same and same again, then I don't think that alone is good because it means say no to best possible profit and yes to good profit.
Who collects funds here? Whom do we trust? Please can you explain this a little bit?