It promotes their growth -- say packaged good companies like Coca-Cola, Trader Joe's, or Starbucks. Clothing companies like H&M and Zara. Most unnecessary material stuff.
A statistic from The Story of Stuff https://storyofstuff.org/movies/story-of-stuff comes to mind that something like 99% of things Americans buy end up in landfills within one year.
Manufacturers slap the word "recyclable" on those products to get people to buy more of them, hence growth.