That's the difference between now and then. They were fighting for a higher goal and willing would give their lives to achieve it.
For many today their life is most important and they would never squander it for their country...
If that was true none of the landing crafts would have had machine gunners positioned as lethal incentive to get everyone off of the boats.
Its a little romanticized being so far away from it. There was plenty of patriotism there but you cant say everyone who was drafted was happy to be there or wanted to die for their country.