Google started to make sense to me when I started to understand their business model- Own every 'entry point' to engagement with a business, and then force that

Google started to make sense to me when I started to understand their business model- Own every 'entry point' to engagement with a business, and then force that business to compete for users by purchasing Google's advertisements. Gaming is big business, Google wants to own the consumer relationship so it can force publishers to advertise/sell through them.