Nowadays, many companies backed up by investors with very deep pockets are doing this in all markets: start to buy middle-man companies in a space, it does not matter which one, dominate the market thanks to monopolistic power. Screw the clients making them pay too much, screw the providers paying them too little. Go for the next market.
Google does this for ads. But, with Apple, does the same for app vendors. Amazon does it for all kinds of brands with physical products. Uber does it for taxi drivers and their clients. All of them take a big chunk of the profit while making things more expensive, but they are the only real option to reach clients as they have used tactics to monopolize entire markets.
This should be impossible, because there are laws against it. If it is allowed the future of the economy is one big corporation with all workers working for it, and everybody buying from it. It looks like a scifi dystopia.