Key Politicians Criminal Mind Sets?

Having gone through the contemporary politics and the attitudes of the Politicians across the globe, it has been noticed that some of key Politicians of some of the countries have developed criminal mind sets. In essence, they don't hesitate stooping to any level to get their power retained. 

It is heard that those Politicians mentioned above are taking strange decisions which throw crores of people into dismay. The Politicians wish to get their popularity and brand value increased with such pathetic decisions. 

Also, it is heard that those Politicians from world countries are using investigation agencies and judiciary to file corruption and other offensive charges on opposition leaders so as to ensure no political party comes into their way. With these decisions, they are losing values to the abyss. They may get either a victory or  defeat through their actions, but then, they fail miserably, in front of their conscience.