That difference in early career opportunities could easily be a part of it (the difference in outlook). I'm just saying there is no need to feel guilty - the world and the economy are fairly malleable, and it doesn't value hard work as much as it values hard work at something that is in demand, so 'following your passion' may not be the best way to make money. As you have said, it has never really been much different, it's just what people demand has changed.