Rent-seeking in silicon valley isn't spoken about enough. Rent seeking has and will always be around, but is it increasing? When we are talking about rankings

Rent-seeking in silicon valley isn't spoken about enough. Rent seeking has and will always be around, but is it increasing? When we are talking about rankings and matching algo's in the hands of monopolies be it Google, Facebook, YouTube et al its a great mystery to me why the advertising industry trusts them so much.