The gpa and the sat scores are used as filters by ivy league universities to assess applications, therefore anything less than 3.5 will get you eliminated even if you gave a sat score which is v good , as each of the criteria for admission is important
The first step of the short listing is simple to understand as the elite schools use the sat and gpa to filter out the students with outstanding scores. Those that donot have the basic requirements are eliminated in the first round itself as they follow a policy of “risk minimisation “.
It is usually the alumni who interview you where ever you are, as the admissions team cannot practically be available across the world
I can answer this question as a counsellor whose students have got into ivy league universities.
Ivy league universities follow a “ risk minimisation policy “ therefore they will reject an application rather than risk diluting