This argument is very similar to that for "enlightened monarch" kind of despotism.
The fundamental problem is that, even if you buy the notion that this particular ruler is really so enlightened that they are a net benefit, there's no guarantee that this will still be the case in the future.
So, even if you believe that Google provides net benefit today, letting them acquire more and more power is a bad idea because they aren't necessarily going to give you free things tomorrow. Indeed, the logic of capitalism dictates that they stop doing so as soon as there's no more competition, however small, that continues to contest that particular niche.
The fundamental problem is that, even if you buy the notion that this particular ruler is really so enlightened that they are a net benefit, there's no guarantee that this will still be the case in the future.
So, even if you believe that Google provides net benefit today, letting them acquire more and more power is a bad idea because they aren't necessarily going to give you free things tomorrow. Indeed, the logic of capitalism dictates that they stop doing so as soon as there's no more competition, however small, that continues to contest that particular niche.