the Equal Pay Act was created in 1963 in order to abolish the wage difference among workers that are based on Gender.
The equal pay act was included as a part of the new frontier program which initiated by president John F. Kennedy which is aimed to improve the standard of living for workers, efficient utilization of labor (including human labor), and eliminating unfair ways of free market competition.
Because the abuser could continue their actions in the future and they need this on their record. Also for the person being abused their life is at stake with the abuser and it needs to be taken seriously.
This is not a violation of the Separation of Powers because he is influencing, not taking any action in the House or the Senate. If he was violating the Separation of Powers, that is not okay.