I think most* of the violations that you mention are done to foreigners (not just visitors, but also those who are working here on visas like me). And this population is not a part of the electorate. Hence the government doesn't really care much about them. And for most of us, it often makes sense to just stay under the radar and try our best not to get on any "government lists", else we might face much bigger trouble down the road every time we fly, or need a visa renewal etc.
* The TSA is the major exception here, in that they seem to be non-discriminatory in their abuse
I think most* of the violations that you mention are done to foreigners (not just visitors, but also those who are working here on visas like me). And this population is not a part of the electorate. Hence the government doesn't really care much about them. And for most of us, it often makes sense to just stay under the radar and try our best not to get on any "government lists", else we might face much bigger trouble down the road every time we fly, or need a visa renewal etc.
* The TSA is the major exception here, in that they seem to be non-discriminatory in their abuse