I remember a native German poster on hn commenting on the subject "funny how the its the brown skinned Germans, who end up in the lower tier schools"
The problem in the U.S. is that not all public schools are equal, so the "merit" to get into a certain school/scholarship is at least partly tied to your social-economic status.
For instance in my area, all public schools have removed arts/music/foreign language, but in the nicer neighborhoods PTA, boosters, and fundraisers have added those removed subjects back with parent donations. So you have a situation where when it comes to vote for a small tax increase to help our schools, many people are confused as their kids go to a public school with everything they need. These are schools in the same school district. New, upscale homes can also pay directly for their public school in the form of Mello-Roos taxes.
You know that meritocracy was seen as a bad thing when it was coined.