Let say, some people are less influenced than others. Yes, some are able to partly escape the 'conditioning'.
But it's impossible to totally escape your environment. It always leave a trace on you; the place you live, the people you be with, the music you listen to, the movies, etc. It leaves an imprint on you.
It does. But why is it so hard to block out the things that is counter productive to your own well being? You can learn positive and negative things from your environment..