Please cite the case or example in question; I know that the NAR is in favor of the free market system.
the Kentucky Real Estate Commission illegally conspired to impose and enforce the rebate ban in order to fix commissions and deprive consumers of price competition by brokers.The Justice Department and the FTC have warned several states in recent months that such laws hamper innovation and competition, and have formally objected to industry-supported proposals in Oklahoma and Texas. (emphasis mine)
I am basing my comments on the article's description of state real estate commissions pushing legislation to fix commissions. If the article is incorrect, then my objections go away.