The most critical talents for a lawyer, in the world of BigLaw (which is the prime $$$ area - where you can get into the 1%), is to build a $2,000,000 book of business so that you become a partner and don't get tossed out to the curb after 10 years. The clock starts ticking when you start working. You can have excellent technical skill, like one of my friends, and be stuck at age 40 because you simply can't attract business.
So, it's really salesmanship and marketing that's the issue, not technical skill. There is an oversupply of technical skill and an undersupply of work upon which to apply this skill. So, for areas such as law, an MITx program would simply depress salaries. Generally those of law professors, which would be a good thing if it could reduce student debt.
I would expect the MITx program to be excellent for something like bioinformatics, where I suspect there is an undersupply of skill rather than an oversupply.
