For example 1, I wonder what you are upset about. As an AA PLT, you can use the first-class check-in line, even while flying in coach. So there you were, getting preferential treatment, but you're still not happy with AA?
As for your second example, that hardly seems like my experience. People who get pulled for secondary screening don't get on the jetway until the plane is ready for boarding, and in general are allowed to jump to the head of the line as soon as they are cleared.
And if you're not happy with the extra security, I suggest you contact the FAA to let them know you are annoyed. AA is merely carrying out the appropriate security provisions.