How does one go about changing a system that is completely rotten

One thing that rankles me all the time is the thought about how one can go about changing a system that is completely rotten to the core?

Does one follow the 'Rang de Basanti' formula of eliminating the people who are responsible for the mess or does one follow the Gandhigiri promoted by 'Lage Raho Munna Bhai' or is there some other method which can bring change in the system.

What system am I talking about? It is the rampant corruption that exists both in the public and the private sector. We have not only become corrupt in our financial transactions but also in thought and approach to anything that we do. For example, any charge of corruption thrown at any of the leaders, be it Chaggan Bhujbal or Sharad Pawar in the Telgi Scam case sticks rather than us giving them the benefit of doubt. The same applies to the policemen arrested in the case. Mr Bhujbal along with his nephew Sameer Dighe institutionalized the concept of auctioning all plum police postings. And I am sure the inspiration must have come from the fact that he himself must have paid a hefty sum to get the Home Ministers post!

How does one go about changing all this. To participate in the so called process of democrary is very difficult and is frought with danger to life and limb as the political class in India consists more of the lumpen elements of the society who will not think twice about neutralizing any threat to their bread and butter.