Help me settle an argument with my wife.

I nearly always cook a side veg with meals. Think broccoli, asparagus, brussels sprouts, etc. I always blanche them in boiling, salted water to hasten the cooking process. My wife, who is Chinese, insists that I rinse the vegetables before blanching them. My opinion is that blanching them in boiling, salted water accomplishes rinsing them without adding another step. Who's right here?

EDIT: My wife's ethnicity matters only as it pertains to different cultures attitudes about food hygiene.