We used to enforce monopoly regulations, and similar types of anticompetitive behaviors that kill swaths of markets. And that's exactly what happened with what you described with Google maps.

This scheme is basically dumping, where you (a company) lower the price of your good and then flood the market to kill all competitors. Then when they're good and dead, you jack up the prices to extortionate levels and sit back and get piles of money, from people with no choice.

https://en.wikipedia.org/wiki/Dumping_(pricing_policy)

The last big antitrust push we had was against Microsoft. And after the judge was replaced for improper communication during trial, MS and DoJ settled. Basically, was a huge case then "Oops nevermind".