People have a habit of treating people in relation to how important they are to affecting their lives. For example, someone might be late for lunch with a co-worker but not for a one-one with their boss’ boss. Folks will show up consistently late for church and even consider attendance optional but never miss work. Knowing this you have to be exceptional and build a life that people want to be apart of. I once had four appointments set up in one week and all four of them got cancelled because the people had other things come up that were deemed more important. There will be a time where cancelling on an opportunity to be in my presence will be detrimental to someone’s professional advancement in life. If people can afford to not honor commitments to you, you aren’t offering the world enough.