Maybe it's as simple as "I don't have as good of a grasp on human nature as I thought I did." But it seems to me, that someone with $100 dollars in their bank account, rent due tomorrow and their next paycheck of $500 coming next week would make the next dollar he made more valuable and make him more likely to pick up the dollar on the sidewalk than the guy with $1 million in the bank and a paycheck of $10,000 coming this week would. And I'm not only talking about perceived value by both people, I'm talking about actual value. One guy needs every penny, the other doesn't. But maybe it's legit me not understanding people as well as I thought I did.
As for the argument of "I'm not a saver" maybe I don't have the exact mentality as moy does, but I do save money. I save more money now than I did 5-10 years ago because I make more money. My mindset really hasn't changed too much, except that I have the ability to save money, so I do. I don't buy many material items, I don't smoke, and with more money I earn, my lifestyle likely won't change much. But there was a period of time where if I saw a quarter on the ground, I grabbed it, because it was 1/4 of the way to me getting a burger at McDonalds for lunch. I'm not necessarily going out of my way to pick up a quarter anymore, because I don't NEED to. Money still have value to me, I do want to retire one day, but the value of each dollar isn't as strong as it was. If you want to blame me for taking my experiences and applying them to society, making for a bad argument, that's fair, I suppose.
If your argument is "I don't care what's necessarily better or worse for the economy, it's my ******* money, and I'm going to do what I want with it, don't tax me more just because I can afford it" I can actually appreciate that argument more. Especially when it's true that there are many people who ARE poor partially because they spend money poorly.