I do care about aikido and even people in aikido organizations (believe it or not, I don't hate everybody that belongs an organization), and for many of those people rank is a very big deal.
Yes, however, those organizations and the people you care about in them already have their minds made up (otherwise they wouldn't be affiliated with the org, right?). Just as no amount of words or sound arguments from others will convince you that the current ranking system is peachy, no amount of words or sound arguments from you will convince them that it is flawed. So after all of the headbutting, who benefits from the discussion? For some, being a member of an Aikido organization is probably a great thing. For others, not so much. But I don't feel the need to influence their own personal decision toward one outcome or the other. It's really just not such a big deal; if you choose to be in the org and you like it, great. If you don't like it, you can leave. It's not like the mafia, people can afford to find out for themselves.