In practice there is though. If something is going to happen regardless whether you take advantage of it or not and you manage to benefit from it, then it basically was a free lunch for you.

One example of this is hydro power. Once you build a water mill on a river you don't have to do any work to keep it going. The sun heats up the water downstream from the waterwheel and it falls down as rain upstream. The river keeps flowing whether you take advantage of it or not. Eventually the sun will stop shining, but in practice that's so far away that it doesn't matter.