How do politicians do more harm than good to the country?

Instead of protecting democracy ,, politicians they themselves try to find ways to escape from law. Trying to pressurise bereaucrats for wrong doings and cleaning their dirty hands during investigations is quite common .Dividing people on basis of caste and religion is another area to think upon.lack of statemenship and policy design for lasting future adds up to common man's misery. Million dollar scams involving top council of ministers is shameful. GODRA case ,, salman rushdie incident ,, 2G scams ,, postal scams watching porn in assembly is it wat we xpect tem to do for us??