I would also like to know, particularly in light of hadiths like these:
Abul-Hârith Ahmad b. Muhammad Al-Sâ`igh, the close and respected friend of Imâm Ahmad, reports:
I asked Abû ‘Abdillâh (Imâm Ahmad) about something that had occurred in Baghdâd, and [because of which] some people were considering revolting [against the ruler]. I said, “O Abû ‘Abdillâh, what do you say about taking part in the revolt with these people?” He decried it and started saying, “Subhânallâh! The blood [of the people], the blood [of the people]! I do not believe in this and I do not tell others to do it. For us to suffer our situation in patience is better than the fitnah (tribulation) in which blood is spilt, property is taken, and the prohibited are violated (e.g. the honor of women). Do you not know what happened to the people (in the days of the previous fitnah)?” I said, “And the people today, Abû ‘Abdillâh, are they not in fitnah [because of the ruler]?” He replied, “If so, it is a limited fitnah, but if the sword is raised, the fitnah will engulf everything and there will be no way to escape. To suffer patiently this [current difficulty], where Allâh keeps your religion safe for you is better for you.” I saw him decry revolting against the leaders, and say, “[Do not spill the people's] blood. I do not believe in this and I do not command it.”
Some came to the prophet and asked "Oh prophet of God, what if we get Amirs who are unjust and corrupt and wouldn't give us our rights?" The prophet responded: "Listen and obey, for you will be rewarded for what you do, and they will answer (in judgement day) for what they do".
"Whomever hates something from his Amir, he should stay on it in patience, for whomever goes against the Amir and dies, he has died the death of Jahiliya (outside the fold of Islam)" Sahih Al-Bukhary and Muslim
The prophet said "There will be leaders after me who do not heed my guidance and do not abide by my sunnah, but there will be men who rise against them, they will have the hearts of devils inside the bodies of humans." Anas -ra- said: "What should I do then if I live to see this?" the prophet replied: "Listen and obey the leader, if he lashes your back and takes your money, you listen and obey."