How people not getting in trouble for that
If Google has to legally pursue all the people and all the companies that churn & burn Google Ads (threshold) accounts, then Google will have to shutdown within a few days due to bankruptcy !!! Do not forget that such big companies do not use the services of some random lawyers down the street. Such big companies, especially for such cases, use (empanel) big law firms, which obviously have fancy juicy pricing and especially for a company like Google, such pricing by law firms (their empaneled law firms), are always fat, chunky and juicy pricing structures, to the extent that recovering every US$100, would end up costing Google (Ads) US$500 !!!
Moreover, almost every such big tech company always has a consideration towards wastage & pilferage : In 2022, Google's ad revenue amounted to 224.47 billion U.S. dollars, out of which perhaps less than 1% would have been churn & burn Google Ads (threshold) accounts and hence it makes no sense to spend billions of (US) dollars to recover a few million of (US) dollars.
And, even if Google Ads wants to catch churners and burners, who will catch all the people named such as Mr. Tokomokolokoyayaayuuyuu Jakaaluputayoramukaroya, (which are non-existent people) ?