not even close to the same thing.
Leaving earlier means planning ahead, often more than a single day in advance, because it means you have to take the time to assure the children are properly settled/taken care of, that you have slept properly to be safe to drive, that you have everything laid out so that you can get dressed and out the door expediently, etc.
"Being born rich" is more like "Oh, I don't have to worry about any of those things-- the nanny takes care of it for me. In fact, I have a man-servant who does the errands in town, while I go and fuck off at the social club."
Deciding "Yeah, I can get the kids dressed, dropped off at school at exactly 8 AM, and then have 5 minutes to race across town to get to work on time--- YEAH, I CAN DO THAT!" is the real problem here.
It denies the reality that you can leave the children at the school up to an HOUR before the 8AM bell, (see for instance, the latchkey and breakfast programs at public schools-- THERE ARE responsible adults supervising children at the school who can receive your children from you at that time.), which then gives you much more allowance to plan your commutes-- etc.
So no, not buying that line. It's a false equivalence.