You have strong qualifications for all of your targeted schools, but especially so for the University of Virginia as you are very involved in Virginia politics.
Their criteria overlap only partially- the VA angle definitely helped you for Echols. It may help elsewhere but it’s impossible to know for sure since they’re so different.
Each college’s decision is made independently. You have the qualifications to be a serious candidate any any school but nobody can say much more than that.
These things are very hard to predict. I certainly don’t see strong correlation between UVA Echols and T10 admissions. My son got into MIT and got a Yale likely letter but wasn’t selected for Echols scholar. As a matter of fact, I don’t know what Echols selection is based on.