I have few points here to share
1. After marrige, all money she get from salary will get spent in paying EMI, and you will feel, their is no money coming from her end to the house and you are paying for maid, cook and other expenses and your wife coming home everyday tired, so why even she is doing the job and issues between you two might get created.
2. If she had to left job because of pregnancy, then you have to handle that situation as well.
3. As the EMI is fixed, after 3 or 4 years, as your wife salary get increase, if will give you some relief that, now she might start contribuing or bad things can happen like at that time her parents gets old and she might also fund their pension.