Can't we change for good???

I am currently in Atlanta. Here, me and my colleagues are staying in a hotel, Marriott Residence Inn. The hotel is 5 miles from our office. Hotel offers free pick-up and drop service to the work place. Shuttle timings are supposed to be 8 AM and 6 PM, which seems to be reasonable. It takes 10-15 minutes for travel.

There are some people (including me) who get ready a little before the actual time, so that no one gets delayed because of us. But, there are people, who come for breakfast at or after 8 AM and then leisurely have breakfast and then start from the hotel. Will they not realize that they are wasting everyone's time?

Mostly, I have seen that Americans are punctual. One day, few of us had got ready and were waiting for others to come. Driver (an American) waited for 5 minutes and then asked if we can start. We told let's wait for 5 more minutes, since some more people have to come. He kept on asking every five minutes and we kept on saying another 5 more minutes. Obviously, he got pissed off. And, he left the place. By around 8.35 or so, everyone got ready, but, he had left. He made us wait for some time. When we called him, he told wait for 5 minutes in a sarcastic tone. I won't say there was anything wrong in what he did. Even after that these people did not realize that it was their mistake, but in turn they were cursing him. The driver asked about our work timing. One person replied 9 AM. It was already 8.55. So, he told, anyways you will be late to work, so I will come after 30 minutes. Even then, no one realized.

The worst part was the next day. Few of us had got ready by 8 AM. Then only did we come to know that the defaulters (who normally come late) have changed the shuttle timing to 8.30 AM. That was really heights. Even for a single second they did not think about discussing with others and then deciding. They had decided all by themselves.

If the timing is 8AM, how can they change it without getting everyone's consent?

Now, the next heights is, after all this has happened, they come for breakfast at 8.45AM!!!

Can anything be done about them to change this? My solution would be: don't wait for them. Let the shuttle leave on time. But, don't know if every one will agree to that.