Also, them being a lawyer, knowing what not to say to avoid pissing off the wrong people is pretty important. Even if it's something they truly believe, if it's something that could piss off a jury or judge they might just be living in their soapbox after they're out of a job.
I know we'd expect better from a judge but, again, look at reality, and then juries might not like you because your tie doesn't match your shirt.