What makes you think that you ought to be able to determine what is a "fair" price?  What business is it of yours what price two individuals or companies determine they are happy with?  Why should you or the government have any say in what price is agreed upon if both parties making the deal are free from coercion?  What you are advocating isn't free market, it is fascism.  The government determining what is a "fair" price is nothing more than market manipulation by people with inferior cattle that don't have the ability or the desire to improve them in order to capture the premium that is paid to people with superior cattle. 

If these rules go through I can guarantee two things.  First, the price that the bottom end receives won't improve, everyone's price will go down to the lowest common denominator.  Then the sore heads at R-CALF will once again work themselves into a lather that these rotten packers are manipulating the price and they will demand more market intervention by the government to force prices higher.  Secondly, the quality available to the consumer will drop.  Right now the consumer is benefiting because the price differential gives an incentive to the people willing to do the extra work to provide the superior product.  If you force the packers to pay everyone the same, everyone will be paid what the people providing food service hamburger are paid.  There won't be any incentive to provide a superior product because there will be no additional money in the top end product.  Instead of raising the poor producer's income it will lower everyone's income.  Then the socialists and fascists that demanded these rules out of the govt. will go back to the govt. and demand more rules because the last ones didn't work.

There is nothing fair about insisting that everyone should get the same price because not everyone has the same quality of product.