How come other sites with the same "violations" show Google ads?
The internet is a wide network of data and information. Google cannot flag all violations all at once. You may see some sites that are running Google ads that are at the same time, not compliant to some of their policies. However, Google does monthly audit on all sites running Google Ads. They will eventually flag these websites and send a warning that tells them they need to take action because their accounts can be suspended if they continue to violate the policies.