What on earth do you think corporate lawyers have to do with changing the justice system?

God knows why you think the multitude of women in power have contributed to increasing income or other inequalities.

Correcting gender imbalances will not have a revolutionary effect, but it does increase opportunities for 50% of the population.  That's not nothing.

The presence of women in top levels also can make workplaces more understanding of work/life issues.  Not always, but more often than not.