Big companies are supposed to benefit from economy of scale. Why is it, that as companies get bigger, their services get worse?
I've also consistently observed this in many areas: while things consistently get "bigger" and more expensive, the quality of service plummets. For example, the Deutsche Bahn. Railway tickets are so much more expensive than they were 20, 30 or 40 years ago, even adjusted for inflation. But the service and quality has declined in several ways. 20 years ago you could board a train and buy the ticket inside the train, from the ticket inspector. Nowadays, if you're on the train without a ticket, you're treated like a criminal: they want your ID and all your details to send you the fine, and will hold you if you refuse to show them. There is also a real crisis of punctuality and infrastructure.
You'd think that with GDP rising almost every year and immense productivity increases of the last decades, things would get cheaper, service better, infrastructure would improve..., but instead in many areas there seems to be stagnation or even decline.
At the same time you hear the news that the extremely rich just keep getting richer. Not surprising when CEO's give themselves 50% wage increases, while employees are laid off for "cost savings" the next year, and inflation adjusted wages for the working class have declined since a generation. Or who can afford to buy a house and a car in a single earner family these days?
I suppose this answers the question of where all that wealth generation from efficiency and productivity increases ends up going.