If you look back a history, most tyrants were in a position of power for a long time and did not have a term limit. Our term limits prevent one belief of a corrupted official become the laws of the free world. If there were no term limits, lobbyist would be paying large somes of money to keep the official in office and in their pocket.
In my opinion term limits on politicians' is acceptable because it allows for a more balanced distribution of power and brings new ideas to the forefront. Term limit being put in place has often brought renewed vitality to the governed and has reduced political cronyism and opportunity for corruption in office.