I would think that if you pursued any job just with an attitude of "get yours and get out" where you were "entirely motivated by having a good paying job" you'd be... kind of miserable.

Sure, a girl who loves working at bakery might be struggling to make ends meet; but if she's also genuinely happy with her career then what does it matter? Work is where the average person will spend most of their time, so I just don't think it's worth it to go into a field you hate in the hope that you can retire early.