AWS certs seem to be valued by enterprise clients in my experience.
Enterprise clients always want to minimize their risk by choosing the closest match to qualifications.
It helps a lot when you have a AWS certificate when the client wants to use AWS for complex workloads.
You can cook up any stories about your past exploits and it would be very difficult for prospects to verify them. However, the certificate gives something tangible to trust upon.
Something to do, lol... I "need" to move 2 sites from a host to AWS and while I have a general idea of how AWS works and how to use it, I figured what better way to learn it quickly then to get certified for it.