I agree, it wouldn't be very interesting. The whole point is that you're an amazing assassin in a world where most people, well...aren't amazing assassins. Stick the character in a time when ninjas were everywhere and suddenly that feeling of power is a bit lessened. Sometimes I feel like people suggest the setting not because it would actually be a good one but because it's obvious.
Currently playing:
Bloodbath Paddy Wagon Ultra 9