Colleges too, even the elite ones, can discount ‘accomplishments’ that can only be achieved by the affluent. Things like study abroad, mission trips volunteering in some country that costs thousands in airfare to reach, or unpaid internships.
Colleges need to weigh more heavily things like an after-school or summer job (especially by those in lower SE circumstances).
Public school needs to be treated the same as private school, recognizing that private schools have many college counselors while many public schools have one for hundreds of students. Some schools have many more AP classes than others.
And legacy admissions need to go.