I think you might have misunderstood. . . he isn't selling those Sigma Chi pins, badges, and awards (nor those of any other GLO). He collects them, and he is exhibiting them on the web.
I think that as long as he is collecting his own badges (he is a Sig, after all), that is great--he's keeping Sig badges "in the family" so to speak. I don't think he would ever think of selling the Sig stuff that you see on his site.
Just a little clarification.
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Oh, Kappa Kappa Kappa Gamma,
I'm so happy that I am a
Kappa Kappa Kappa Gamma,
Nobody knows . . . how
happy I am!