It would be wrong because different dictators:
- Use different tactics to preserve their power,
- Kill more or fewer people,
- Allow more or less human rights,
- Derive their power by different justifications.
And, as an added bonus, they do different things to make their place in history such as:
- Eating people (Idi Amin)
- Killing all educated people (Pol Pot, Mao Tse Tung)
- Wiping out entire demographic groups (A. Hitler, Joe Stalin)
- Bleeding all the money from the people to maintain an extravagant lifestyle while the people starve (Kim Jung Il and Kim Il Seung regimes in N. Korea)
