Did Joan's percentage of the company get diluted when they brought back Don? That would drive about 99.999% of her decision to vote against it.
Christina Hendricks did a terrific job playing Joan. She from an office flirt/sometimes slut chasing an engagement ring to joining the boy's club of rich partners.
Some of my Joan observations :
- Does she want Roger to leave his wife and marry her? I'd say no. I get that their relationship is dying out in Season 1, but she never gives it the college try. Maybe in the events before Smoke Gets in Your Eye she tried and failed with Roger.
- Probably due to her age, social status, and her own vanity, she had to settle for a untalented and not connected doctor. The guy was handsome but he was also mean, rapey, and was no surgeon. She was pretty unsupportive when he joined the military to chase his surgeon dreams.
- Credit to her for pouring herself into her career after her failed marriage. Joan in 1960 would probably view being a divorced, single mother as a fate worse than death, but she used her career to get back up again.
I think the posters above did a pretty good job breaking down her character in later seasons. I understand her animosity for Don. He often put himself before his friends and the company. Yes she was kind of a bitch, and it just got worse as she aged, but you could say the same thing about Don right up to his Coca Cola epiphany.