This scenario is correct:
The Supreme Court rules that companies must pay men and women equal wages despite earlier court rulings allowing wage differences
Step-by-step explanation:
It is common practice for the courts of the time and today too to go by the precedent set by the previous courts and to not go against the norm.
The change to this policy is to be seen in this ruling.
the court before this one had been ruling in favor of the wage gap but this is ruled against in the present court.
Thus the decision is taken without any precedent which is not the common practice, albeit the new decision seems more constitutional rather.