Don't businesses also pay a lot more than individuals. I know here in Sweden playing music as part of your business is licensed differently than playing music in your living room. Commercial properties pay about 10 times as much pr. month for Spotify to cover commercial licensing of the music.
That was a really good question so I looked it up. Apparently commercial use of Spotify is against their TOS. So while some businesses certainly do use Spotify illegally, it's not a piece of business they are trying to get. https://support.spotify.com/us/learn-more/faq/#!/article/pub...