Quote 1
"You laugh at me when I say I want to be a lady, but I mean a true gentlewoman in mind and manners, and I try to do it as far as I know how. I can't explain exactly, but I want to be above the little meannesses and follies and faults that spoil so many women." (30.62)
Amy associates moral goodness with aristocracy – being a "lady" or a "true gentlewoman." Her sisters, by contrast, tend to associate goodness with hard work – rolling up your sleeves and diving in.
Quote 2
I may be mercenary, but I hate poverty, and don't mean to bear it a minute longer than I can help. One of us must marry well. Meg didn't, Jo won't, Beth can't yet, so I shall, and make everything okay all round. (31.30)
Amy approaches marriage pragmatically: she's going to marry for money. Don't judge her too harshly until we see whether she can force herself to do something so mercenary or not!
"Now, Laurie, don't be too fastidious and worldly-minded. If they love one another it doesn't matter a particle how old they are nor how poor. Women never should marry for money . . ." Amy caught herself up short as the words escaped her, and looked at her husband, who replied, with malicious gravity . . .
"Certainly not, though you do hear charming girls say that they intend to do it sometimes. If my memory serves me, you once thought it your duty to make a rich match. That accounts, perhaps, for your marrying a good-for-nothing like me."
"Oh, my dearest boy, don't, don't say that! I forgot you were rich when I said 'Yes.' I'd have married you if you hadn't a penny, and I sometimes wish you were poor that I might show how much I love you." And Amy, who was very dignified in public and very fond in private, gave convincing proofs of the truth of her words. (44.20-22)
Amy says she'd have married Laurie even if he was poor, and who are we to doubt her? Still, it is just a little too convenient that she gets to marry for love and get rich at the same time. Or maybe we're just jealous!