Does GTA VI have a morality or honor system?
It has a Criminal Profile, not a simple good-versus-bad meter.
Rockstar North says it tracks how professionally or aggressively you behave and can change how the world reacts.
The evidence
Explicitly stated by an identified primary source.
FamitsuFamitsu interview with Rockstar North co-head Rob NelsonEL PAÍSEL PAÍS visits Rockstar North for a GTA VI demonstrationRockstar GamesGrand Theft Auto VI official siteRead the full supporting guideWhat would change this answer?
A final interface reveal or revised explanation from Rockstar.