Argument #1 does not really make sense, since by repeatedly applying the same logic it implies that engineers will work an infinite number of minutes each day. A variant of this argument that I've often heard is this:
"My decision to take the plane does not negatively impact the environment, since the plane would fly with or without me in it."
"My decision to take the plane does not negatively impact the environment, since the plane would fly with or without me in it."