Of course I am.
The tl:dr is that Margay and the penguins created a limited resource they gave value to in what was a post scarcity world.
Here it is
There is a second layer of critique though, and this is about consumerist society. Like in Romero's zombie movies, here we have a society who collapsed and yet can't stop themselves from wasting energy for useless things like Idols. There is still the view of money not being important, the owls were paid with a simple ticket, but *why* where they paid? Logically telling them to come and shake all the hands they wanted for free should have been the reward, not a piece of paper. A piece that has no value unless people recognize said value. And what is this episode about if not money then? Bag-chan could do what Margay couldn't do because she had money to spend. Bag spent her money, and now she would have to do something again for the Penguins to be able to shake hands. We have a post scarcity society and yet someone manages to still make a profit, exchanging work for money that can be converted in hand shaking.
No other animal did this, they all worked for free. The idols are thus elevated and attacked as the symbol of japanese consumerism and hoarding of power.
When Margay tells you that all idols have to do is be cute and sing/dance she's talking about how all capitalism does is give you a shiny box without real value.