Techwise it probably doesn't, but then there's marketeers, sales, accountants, legal, etc...

He strives to keep the best lawn in the neighborhood.

Why not? Some companies do have a fraction of Spotify users and have around 100 software engineers. Things do not run by themselves. Also they are in many countries so you need to keep up with legal changes...

I can see the need for those engineers but more importantly, Spotify needs sales people.