No Mel, 
You're right, in many cases doing nothing at all and preferring the status quo simply due to your own status quo bias is the best thing to do. After all, what we do now must be what we should always do.   True knowledge is 19th C. knowledge that led to the Great Depression.  Labour policies continue to work to this day, in Canada, but could improve.  The 1970s did indeed have a strong middle class, but I'm glad women are more engaged in the work force now.  Yes, more societies lived under communism in the 1970s but few of them are doing much better today under laissez faire capitalism (though that could change with time).  So, you're right, we should just accept that the status quo is the best we can do and free ourselves of thoughts of a better world.  Thanks Mel.