C. F. Keil and Franz Delitzsch on Proverbs 28:6

Pro 28:6

What is stated in this proverb is a conclusion from the preceding, with which it is also externally connected, for רשׁ (= ראשׁ), רשׁע, רע, and now רשׁ, follow each other:

Better a poor man who walketh in his innocence,

Than a double-going deceiver who is rich thereby.

A variation of Pro 19:1. Stainlessness, integritas vitae, as a consequence of unreserved devotion to God, gives to a man with poverty a higher worth and nobility than riches connected with falsehood which “halts between two opinions” (1Ki 18:21), and appears to go one way, while in reality it goes another. The two ways דּדכים (cf. Sir. 2:12, οὐαί ἁμαρτωλῷ ... ἐπιβαίνοντι ἐπὶ δύο τρίβους) are, as Pro 28:18, not ways going aside to the right or to the left of the right way, but the evil way which the deceiver truly walks in, and the good way which he pretends to walk in (Fleischer); the two ways of action placed over against one another, by one of which he masks the other.