to make sense; to be reasonable, plausible, or convincing

To be expert at making money or accumulating wealth; sometimes used negatively to mean knowing how to line one's own pockets.

Even thieves have their own principles or rules that they follow; specifically refers to having a sense of integrity or certain standards within a criminal group.

As the saying goes; it is said that.

to have moral integrity; to have morals

to have its own logic or rationale behind a situation