Betty is not in this episode
Elinor Donahue's absence from this and earlier episodes in the 3rd season was due to her advanced stage of pregnancy with her 1st child Brian Ackerman.
Mr. Sageman's name seems appropriate for his character on multiple levels. On one level, a sage is a venerable mature person possessed of great wisdom. On another level, the sagebrush is a plant emblematic of the unfettered wilds of the wide open spaces in the old west. On still another level, sage is an herb thought to have medicinal properties.
The title suggests aiming for the moon, as in, a lofty goal. Royal Dano, who plays the prominent character, played the minister in "The Right Stuff", whose plot was about aiming for the lofty goal of space, and, eventually, the moon.
Haynie Sandsbury was not in this episode nor in any other episodes.