When I watched the third democratic debate, I was amused and horrified with the way Hillary Clinton defended the decision to intervene in Libya:
…we have to continue to do what is necessary when someone like Gadhafi, a despot with American blood on his hands, is overturned.
This is precisely the same way that George W. Bush continues to defend the Iraq War:
One thing is certain: The Iraqi people, the United States and the world are better off without Saddam Hussein in power
On these accounts, overthrowing dictators is the right decision because dictators are bad, and we should get rid of bad people. This reminds me way too much of the plot of The Hunger Games: Mockingjay Part 2. Spoilers for that movie follow, if you care about such things.