your post reeks of fear, you're afraid your l33t sysadmin skills are not going to be needed if your company starts using a modern software process. sad.

no, he said you have the ability to WRITE DATA to one particular context (schema). you can't escalate permissions or affect the database server configuration itself. yeah, you could overwrite data for that one app, but it couldn't scale beyond that. Y'all are thinking of single system concerns this is a system-of-systems. The goal is to ensure that even if one system is SOMEHOW compromised, that access does not spread to other systems.

the number of angry BOFH sysadmins worried about losing their jobs instead of learning something new is HIGH on this thread

the amount of sheer ignorance in this comment thread is ASTOUNDING