When you've achieved what you've been working for: ability to purchase quality products, convenient access to services, and a plethora of entertainment: what's the need to be politically active?
Oh, wait. That's right. To confront other people who are being politically active and using the system to demonize those ideals and take all that stuff away. The old world ideations have been realized and somewhere somehow some people have realized that all of this stuff the old world wanted is just hollow claptrap, and now these new enlighten people will now do their level best to destroy that old world realization. So by promoting old world's demise all they fail to realize that they too are held up by many of the old world's innovations -- until they finally get their way and outlaw any products that threaten to be "the quality" (can't have near monopolies!), regulate to impracticality the existence any convenient services, and only allow entertainment that affirms the destruction of the old world ideals. Until this society collapses into chaos or is overturned by a person who somewhere somehow realizes the world could be better place if people were free to make quality products, offer convenient access to services and create their own entertainment.
Really I agree with you that the upper middle class is probably apathetic and out of touch with "real" people, and probably mean and insensitive, and more than willing to the let the powers that be run things as they are. However:
- a.) Being happy with ones ideals is NOT a bad thing
- b.) Tearing these happy middle-classers legislatively will NOT help anyone except those in power
- c.) Enjoying these ideals is NOT what makes them responsible for political power shifts.
As for the ones dependent on the state: You don't think that makes them pawns to be played by political players? Generational welfare conditions people to remain dependent: eventually coming to the view that the government is the only resource, they can only petition and hope the merciful rulers will hear their plea.
Whereas a person of some means has a choice if a local government brings down some crazy oppressive ruling: they can leave and deprive that local government of whatever taxes and local economic activity they may have contributed.
National oppressive government... well, there you don't have too much choice. So we're probably all screwed already anyway...