Didn't they realize that the only way to change things was to act?

You have an audience that is fairly well grounded in the real world. You serve them and yourself best by making everything as real as possible.

All I want to do is change the world.

Music can't change the world.

To change the world, you need to understand and accept that somethings doesn't change and other things do, your job is to identify which is which acting towards things that do change and ignoring things that don't.

Almost all people talk vociferously and publicly about the change until their financial position change from low to very high to enjoy merely own lavish life and then the only change is seen is in their definition and meaning behind the earlier version of their respective change.