I think that would be a mistake, CL. I personally would think less of an employee if she had her husband speak to me about HER job situation! I think your wife needs to learn to handle these situations on her own, without you "rescuing" her.
Now, you DO need to validate her, however. "That must really be upsetting to be yelled at like that" and that sort of thing. But I would not personally let my wife put me in the middle of her situation at work -- I think it's unprofessional.
