why all contributors are not treated equally?

I just looked at the recent top sellers list today; there I found this portfolio.  Syed photos, images, assets | Adobe Stock   Oh my God, I was shocked for real! Those images, man! By what chance do those moderators accept that kind of image? I want you all to go check that portfolio fully. This is very serious because contributors like us, even after making high-quality images, get rejected with reasons like quality issues or something. And more surprising is how that account got 1,000 downloads with only 1,700 images also with  new account. or  he/she is different from all the other contributors out here?