Oh, I think that the laws are pretty clear here. Many people who sell their land make out like bandits. They have lawyers who come in to represent them.
Like the mess in Aquilá, turns out, the mining giant Ternium paid off the ejidos and they receive monthly payments for life. Now those who live there but weren't part of the ejido are p.o.ed and want a share even though they weren't land owners.
Eminent domain is pretty clear here and people get paid fair value, not speculation prices but "valor catastral" is what it is. Sorry to disagree. I will say that the concessionaires make a ton of money, why not? It's a business. I wouldn't want them to be poor. Helps build national infrastructure, and if you don't want to take the toll highway you can take the libres. You get what you pay for. People always say how nice everything is in McAllen, Tx. Fine, my property tax is 120 dollars a year in Mexico, the same house in San Antonio would pay close to 6000 dollars. That money paves roads.
BTW, we took the "libre" from Monterrey to Reynosa. Very good highway and much more scenic than the autopista.