o
        / \ Morals
       /   ‾‾‾‾‾‾‾‾
Money /
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A lot of people actually like it because it really doesn't work the way OP said it did. They are partially correct, but you also get rewarded for perverse incentives. If you double pay your CC, it will actually slightly lower your credit score. If you have a lot of credit cards with no balance, that can also lower your score. The quickest way to buildup credit in the US is to get a card that has a 0% 18 Month introductory interest rate. Pay the minimum balance each month, and save the cash to pay it all off in 17 months. You will accumulate credit like crazy, holding a balance strangely increases your credit (until the balance gets too high or you start missing payments, then it will take a nosedive).

Interest, late fees, holding a balance, a lot of the bad stuff is actually weirdly good for your credit in the US. I mean it makes sense... they want to reward people who are stupid and pay interest, but actually have enough income to keep making payments forever.

When someone from the US remarks about their credit score, it always causes me to raise eyebrows. You can be poor and have a high credit score, it's incredibly common.