In Indian politics, a huge amount of money is required to contest seriously even in a seat of M.L.A. (State Assembly).
For M.P. seats (Country Parliament), the amount may be a few times higher than that.
It is very difficult to earn such huge amount of white money to expend in this purpose from own pocket.
So, it may be the case that the persons want to contest in vote seriously are perhaps bound to compromise with corruptions.
These roots are perhaps extending their branches at different directions.
What is your analysis about politics of your country?