One of my friends HATES it when the bigwig shows up late for the meeting the bigwig called in the first place. Complaint is that if you're the bigshot, you should manage your time better. When you're in the middle of an important meeting and it's not going to wrap up in time, you say you need to schedule another meeting because right now you have to be somewhere else. Because you're important enough to make everyone meet up again. But it's rude and inconsiderate to make the other people sit around wondering whether or not the meeting is going to take place. Granted, this was complaining about a particular bigwig who routinely showed up an hour late for meetings.

I'm glad you're needed at your job.