That isn't true though, is it? For a start, getting people outraged is one of the oldest tricks in the book of media and especially politicians, as most of recorded history should tell you. The US Right is basically founded on and run by people who peddle outrage - as Fox, the zoo of radio hosts, Trump and such like should tell you.
Secondly even on social media there is a big difference between the outrage of right and left. The left is usually outraged by things like this, about Johnsons escapades, about the mistreatment of people and so on. These are all things that its reasonable to get annoyed about.
The right on the other hand is outraged by wars on Christmas, immigrants and the notion that the society and media they themselves control is somehow biased against them.
The right tend to get outraged by conspiracy theories - deep state, the media and so on - and is largely an underground phenomenon that gets laughed at in the mainstream, often rightly so, but the point is it remains away from the mainstream. It's a constant but low level current of hate that drives their outrage.
The left, however, go balls deep on outrage about generally unimportant stuff on a daily basis, particularly on social media, to the point where it becomes white noise.
It's the left that overused the power of outrage to the point where it becomes useless.
That's what you'll see with Cummings here - it'll become political, where the Tories and their supporters will dig in and the left will plow in, but because it's happened a thousand times before it just becomes "another one".
I hope Cummings goes; I'm not expecting it.