People in London buy Instagram ads to sell products to people in Birmingham and that money comes into the US. There are plenty of ways for you to catch some of it.
For example, what is the benefit of google existing? Sure you can do google searches. You can use maps. But can you quantify it?
The benefits of living in a society that respects pluralist values is that even if you personally have never used Instagram ever, you still respect what it provides for broader society.
Its easy to give a popularist argument against anything you don't like - "how does it benefit me?!". Well it need not, but others use the products.
On a side note: I'm glad to live during times where we respect pluralist values. I hate football and find it mind numbing. But its great that those people can have their fun and joy without having to convince me. And I can have mine with League of Legends.
https://en.wiktionary.org/wiki/collectivism
“Pluralism” refers to a society supporting diverse systems of law, religion, or culture. Like the United States.
https://en.wiktionary.org/wiki/pluralism
I don’t know what “popularist” is but perhaps “populism”; however, the complement of collectivism is individualism.