Why the Facebook Graph API doesn't return all public information available on a persons profile -

i wondering why profiles can access subset of public information available on profile.

for example, using graph api explorer tool , requesting access token basic permissions:

searching john.street.10420 returns user's full information including hometown work etc. matches available on public profile accessing page https://www.facebook.com/john.street.10420.

however:

searching angela.wright.1481(found using facebook public profiles directory) returns basic information though there public 'about' information available accessing profile: https://www.facebook.com/angela.wright.1481

does know why graph api seems returning public information users not others?