And when we create nested systems within larger systems, often times those who benefit in the large system receive the benefits of the nested system, unless we account for it to be otherwise.
Case in Point–A few years ago, Southwest Airlines revised their boarding system from a “first come, first served at the gate” model to one that gave the early boarding spots to those who checked in online first. This was a natural evolution as the internet became more prominent in our lives.
Southwest additionally created their version of a tier system to honor and recognize its regular customers, which is also not uncommon in the airline industry. Southwest then revised its boarding system once again to reserve the early boarding spots to their frequent travelers with high tier membership and those that bought into the full fare ticket price.
On face value, this is a good system for recognizing brand loyalty by an organization that prides itself on low-frills, and is also fairly simple, which sets it apart from other brand-loyalty programs. On face value, nothing in this system is set up to unequally reward one group over another (assuming of course that the value within a capitalist system of rewarding customers who have given you a lot of their money is fair—but that is another post).