Money we lose in frauds

With all these scams that have come up like 2g scam, adarsh society, common wealth games etc., the politicians are caught, jailed for time being. The court cases are going on for few years & then when we people forget about them, they are freed to enjoy the money that they have made with all these frauds. Why we never heard of money of fraud being recovered from them with penalties & brought back for people.

Also why these MPS, & MLAs shold be paid so much & given so many luxuries when they do nothing except stepping out of the session or beat their desks for more than half of the sessions.