@Arkandel In individual cases, it doesn't bother me at all. An average sized city contains at least a few ten thousand people, and I'm absolutely cool with the idea that things might be happening that my character isn't aware of and doesn't have the chance to get in on. ESPECIALLY for PrPs. If someone's taking the time and effort to run something for their fellow players, I don't feel they should be tutted at because they're only doing so for people they enjoy playing with.
However, if there's a persistent and long-term discrepancy in who STAFF-RUN plots get offered to, that's not good. In my opinion, staff should be looking over the playerbase, seeing who hasn't gotten plot goodness, and specifically reaching out to those players to see what's going on. For some players, it's because they're not interested in plots, and that's fine. But some people just don't know how to get on things or have quirky concepts (or, worse, a concept that doesn't stand out at all) that have difficulty getting tapped for plots. In which case, staff SHOULD be pitching some things directly at those people, so that they can join the fun.