The problem there is that there's no universal set of principles that are right or good.
For example "don't leave money on the table" or "make as much money as possible" could easily be a principle someone adopts. In such a case, she would be standing up for her principles by maximizing her acquisition of money at the expense of other things.
I don't need a universal set of principles that are good because such a thing is impossible. The entire world of human thought is a subjective abstraction. This need for objectivity is a common failing of the scientific mind, and it is a struggle in vain as our brains are far too puny to truly comprehend the nature of things—we must deal in abstractions, and abstractions as, any programmer knows, are leaky.
And people who put wealth and money before everything else are generally seen as assholes or even evil.
Example: The asbestos industry officials knew of asbestos dangers of asbestos since the 1930s and had purposefully concealed them from the public. To make money.
For example "don't leave money on the table" or "make as much money as possible" could easily be a principle someone adopts. In such a case, she would be standing up for her principles by maximizing her acquisition of money at the expense of other things.