While technically so, the ones I have known in the counties I have lived in had no more ambition than to be true servants of the people and do their duty in nothing more than an honorable and constitutional way.
Like this guy:
A sheriff in Massachusetts isn't really a law enforcement officer. They run a portion of the corrections facilities and don't do any significant police work. The sheriff is a county level position and like the rest of anything country related in Mass, should be deprecated.