I am very well aware that money is inheritable and can be transfered from one deserving person to another not so deserving person. However, transfered money will run out if one doesn't work to keep it or maintain it. Furthermore, inherited money is only inherited once, so it isn't taxed as an income tax with every paycheck. The rich people who are being taxed every paycheck are those with a high income who worked to earn their money. Money is typically shows that someone did some kind of work and was confenstated for it.
You argue that redistributing grades would undermine the purpose of grades, as grades are designed to show merit. However, some people cheat and earn good grades. Others are favored by their instructor. Like grades, money (or, more specifically, income) is meant to show work and merit. Just because some people earn their money in questionable ways does not mean that everyone with a high income should be forced to give up a relatively high percentage of their money for people who do not have money for whatever reason. That would be like a teacher deciding that because someone probably cheated on a test, everyone who got a high grade on the test would have points deducted, and those points would be given to those who failed the test.
You argue that redistributing grades would undermine the purpose of grades, as grades are designed to show merit. However, some people cheat and earn good grades. Others are favored by their instructor. Like grades, money (or, more specifically, income) is meant to show work and merit. Just because some people earn their money in questionable ways does not mean that everyone with a high income should be forced to give up a relatively high percentage of their money for people who do not have money for whatever reason. That would be like a teacher deciding that because someone probably cheated on a test, everyone who got a high grade on the test would have points deducted, and those points would be given to those who failed the test.