By 'qualifications', what do you mean? Like professional accreditations? If so, all the more reason to help women and minorities by giving them the opportunities to earn those accreditations!
But if you mean 'innate ability to reach a higher level', then are you implying that women innately are incapable of climbing to the same senior engineering positions as men, and no amount of training or education will change that?
I am not sure what you call this style of arguments ? You are deviating from my point and intention.
Lets take GPA for example. Do you think 2 people getting a GPA of 3.0 are of the exact same knowledge level ? Is it possible that one has the equivalent score of 3.13 and the other has 2.87 and that they were both normalized to 3 ? Same thing with the jobs. Maybe you see this at your job too. There are going to be people more skilled at what you do and people less skilled at what you do but still pulling the same salary. The salary you earn is an approximate estimate of your skill measure but not an measure of your exact skill.
You are the one digging the wrong rabbit hole here.