Honestly, I think this may be just an excuse. He knew that his wife was a lawyer before marriage. She is not suddenly as a lawyer, right? Also you say that he also has good career future.
I saw one case where the wife was a doctor, and the husband was the receptionist, answering phone calls for appointments seeing his wife. But himself is an engineer, resigned to help out his wife in the clinic. But this is the case in overseas, not hk.