You are exactly right. Single minimum wage doesn't make any sense considering there is such a wide gap between IT and everything else. However keeping minimum wage to the 1989 level hurts H1B IT workers more because many of them literally end up getting just that even if they qualify for far more. I guess the issue is not solvable easily because to create job titles and assign it minimum wage number that is, say, at least 10% more than average current is herculean task in itself.