«A judge should not lend the prestige of the judicial office to advance the private interests of others...» (legalethicsforum.com)
[5] In addition to appointing lawyers to serve as counsel for indigent parties in individual cases, a judge may promote broader access to justice by encouraging lawyers to participate in pro bono publico legal services, if in doing so the judge does not employ coercion, or abuse the prestige of judicial office. (courts.arkansas.gov)
This would prevent judges from åany enticement to lend the prestige of the judicial office to benefit other interests. (slaw.ca)