In Europe Androids have had user decided default browser/search engine selection in the out of box set up for years. Google still wins massively because users know it is simply a superior product.
I doubt that the same number of people willingly choose Google, otherwise they wouldn't be paying so much money to be the default. That's a lot of money to throw away.
Outsourcing arrangements many different motivations, it’s not just money. Otherwise, basically any outsourcing arrangement can be said to be “throwing away money” for one party.