If (a) scholastic aptitude has a significant effect on your lifetime income, (b) people tend to marry people of similar social and economic class, and (c) scholastic aptitude is fairly heritable (through genes, environment, whatever)...
... then you would expect the Perfect SAT scores to correlate pretty noticeably with family wealth. This wouldn't be a sign that anybody is doing anything wrong; it's just as natural as water flowing downhill. And these are reasonable premises, with strong empirical evidence for each of them.
So, question: just by looking at the correlation of SAT scores with family wealth, how can we possibly tell how broken the test is? How can we know how far the real SAT is from the absolutely un-gameable Perfect SAT?