Selfish? You have got to be kidding. When I make a bris it is at our shul at our time and I cannot fathom why anyone would expect or need changes on their account. I am at home one week post partum with a whole house full of toddlers and little kids to get ready and transported while the men are at shul and most of the women are setting up the last minute stuff. I should be worrying about you waking up an hour early? You should worry about me having help getting out of the house!
There were only two times when the bris was arranged around someone, we had a menahel who was in end stages of cancer and we wanted him as sandek for our yom tov bris. I insisted on making the bris as close to his shul as possible so he would be in the least amount of tzaar walking to it.
The other time was when my mom was in the hospital for the last time and we arranged for a minyan to go to her bedside after shacharis. When she was rushed to ICU 45 minutes beforehand we quickly moved the bris to the shul of the sandek instead of our own shul.