Nothing wrong in being a politician, I myself am into politics and am actively pushing my agendas on the forums available to me.

Often people use "politics" or "politician" as a cussword which is bad by itself as politics is one of the great inventions of mankind; it allows people to sort out their differences in civilized manner witout retorting to killing each other in the process. (war is result of broken and incompetent politics)
Of course there are bad and incompetent politicians but they should be condemned as such, not to condemn the art of politics instead.