Geese know they need to leave, to head South. And, they know they can't achieve the journey alone (they're too large and would exhaust themselves on the long trip). So, groups form. But, one goose needs to decide. One chooses specifically when to go...one bird leads. Once they set-off though, teamwork and instinct take over. The group's culture has formed through evolution. They've learned flying in formation significantly reduces effort (up to 30% less for each member) and increases the likelihood of the group’s survival and reaching the destination. The lead doesn't benefit from the physics of formation flight and tires before the others. But, the lead knows her turn will end and relief will take over. This method of rotation and spreading out the effort among the adult birds is understood. The culture isn't questionable. Everyone takes a turn and does some heavy lifting.
Leaders choose where and when to go. The team makes it actually happen. The key is to build a culture worth working for where it's understood eventually, everyone takes a turn up front.