Sure, the results of this study panned out as expected. Exactly like the study my professor is performing (detailed in "The Language Gene" thread in the science forum) has expected results. Science isn't all about inducing astonishing paradigm shifts all the time. Sure, that's what gets hailed in the media, but in general, that is not what science is. It's a slow, gradual process. It's about confirming, and reconfirming what you already know until it's established beyond any doubt. This study does exactly that.

It's not as though there aren't unexpected results in sociology as well. For instance, you may be interested in the panic myth.

But nevertheless, I think sociology is an important field of study. It shows us how social forces shape individual attitudes and behaviors, it shows how societies are developed and maintained, allows us to see the bridge between the individual and society, allows us to better appreciate the diversity in the human populations, and, contrary to what you say, challenges our commonly held beliefs about society as a whole among other things.