Any organization that has their data on the Cloud and is serious about the Security and Sanctity of that data. A JIT tool should be the first tool used to streamline the cloud and database access management. Without it you can be assured of sleepless nights.
In Cloud, network is not the perimeter. IAM is. Also, humans are the weakest link and to ensure that we establish a zero trust system, IAM JIT is a must.
JIT ensures that the humans are taken out of the security loop. Time bound access ensures that both the attack surface and time reduces to minimal.
JIT is a cloud-native tool. It is focused on going deep with workflows, approvals flow and logging capability for cloud and databases running on cloud. PAM goes wider and may miss the critical aspects which JIT covers.