The Civil Rights movement lasted from 1954 to 1968. The Berlin Wall lasted from 1961 to 1989. The #MeToo movement is ongoing and still a long way from achieving its goals.
Not sure what reforms you're referring to with the 2008 crisis. Housing is as unaffordable as ever.
I think your list reinforces my point. You can't achieve meaningful reforms instantaneously. It takes years and decades. The zeitgeist moment might be a catalyst, but focusing on it exclusively ignores all of the work on the ground.
In any case where major reforms are needed, there will always be many people on the other side who need to be convinced (or move on). This takes a long time.