Earlier quoted context omitted.
Actually I said "I can't think of a single advantage beyond PR". You don't seem to disagree.
A better work environment for more of the employees and a wider applicant pool with more qualified applicants making it through the pipeline doesn't seem to be PR by my definition, but maybe if it is by yours, then I suppose we don't disagree.
I don't see how the work environment is made better by my presence. I'm not going to be any nicer to minorities than my majority coworkers. And quite honestly, if someone of my race considers the environment better because they have a firangi to talk to, I'm unlikely to get along well with them.