There are two ways to think about all star selections.
One approach is to try to pick the best two dozen players regardless. So a region ODP guy stuck on a midlevel HS team might make the team but you would not necessarily have a representation of the season successes.
Another way is to make up the team with players who contributed to the success their program achieved. You see players from all four levels because each level has successes.
I don't think you can just load up an all star team with players from the 4A school every one thought should have won. No purpose (and no success).