Is politics is always bad?

i cant say politics is always bad.... it is the politicians who have changed politics.... they have started to use this profession to cheat people and rule over them.. but this has been a long standing tradition of the politician.... so even if a person wants to be a good politician... it will be difficult to survivr for him moreover only politicians are not like that... businessmen, filmstars also encourage them to become or stay as they are now... so the entire system has to be blamed for our state... not only politicians