Money shouldn’t be the defining characteristic of who you are as a person. In other words, your ability to accumulate wealth regardless of how you got it, shouldn’t be what defines you.
Locke on property: the accumulation of goods through labor demonstrates your work ethics
Voltaire with money: Cunégonde‘s brother, the baron of Thunder-ten-Tronckh, opposition to Candide’s plan to marry Cunégonde because of the difference in social class, despite all that Candide has done to save her.