Model Rule 8.4(g) includes “socioeconomic status.” However, the comment to the rule provides: “A lawyer may charge and collect reasonable fees and expenses for a representation. Rule 1.5(a). Lawyers also should be mindful of their professional obligations under Rule 6.1 to provide legal services to those who are unable to pay, and their obligation under Rule 6.2 not to avoid appointments from a tribunal except for good cause. See Rule 6.2(a), (b) and (c).”