Hasina's arrest

I am a 26 years old non-resident Bangladeshi living in a western country. I grew up in the Middle-East from the time I was three. I came to a western country when I was 17 and during my formative college years, I developed a keen interest in reconnecting with my Bangladeshi roots. I found the Internet an amazing tool to do so and have almost religiously read the daily newspapers that are published online to understand the lives of people in Bangladesh. It goes without saying that one cannot read about life in Bangladesh without following the politics surrounding it.
I have to say that with each change in government, I have been hopeful that the people of Bangladesh will finally be afforded the same opportunities that I enjoy here, or at the very least be given the opportunity to self-determine their own destiny. Alas! With each change of government I have been disappointed with the ultimate outcome. But hope is a funny thing -- no matter how probabilistically certain the outcome will be, hope is one thing that one can rely on to beat the odds.
The actions of the caretaker government have aroused a glimmer of hope in me but I am utterly confused as to the reaction of the people, so much so that it has prompted me to write this letter.
I find it hard to rationalize why the people on the streets are so outraged by the arrest of Sheikh Hasina. I wonder if Hasina would express the same outrage if the average person on the street were arrested on charges of extortion. After all, Bangladesh first acquired the dubious distinction of being the most corrupt country in the world during her tenure and retained such the distinction for a few years thereafter. Are the people finally expressing their heartfelt gratitude for her administration's hard work in making the country the most corrupt in the world?
It just blows my mind to see university professors wear black arm bands and refuse to attend classes to protest the arrest of Sheikh Hasina. What I find even more confusing is how the people can entertain the idea of voting to power political figures that have already failed miserably, once in the case of Sheikh Hasina, and twice in the case of Khaleda Zia. Why not channel some of the outrage towards the political parties so that they may offer the people new leadership?