> makes very little difference
It does make a difference if lots of people do it. Nothing in the world makes a difference if only one person does it.
> recycling
Because something exists that you don't think makes a significant impact is not evidence that other things don't make an impact. It's an absurd statement to say nothing people do makes an impact - look at almost everything in the world. Look at the Internet, built mostly by self-organizing people and groups.
That dogma does shift power to corporations - then they can claim to be the only ones that can do anything.