“Pre-med advising and the academic community is really important to me in terms of preparing me for med school.”
Why are you not committed to WashU then? It’s known as one of the best for premed advising AND supportive community.
Besides, as many have said already, undergrad doesn’t matter for employment if you go to grad school. Going to WashU is already going to prepare you for the top medical schools in the country, though if you get into Harvard med it will depend entirely on the amount of effort you put in, not the school you go to.