I've heard the "engineering doesn't care about cost" problem come up quite a bit, but I'm starting to wonder if that's actually the right diagnosis.

If an engineer can see latency, errors, CPU, memory and availability for their service, but has no idea whether that service costs $500 or $50,000 a month, can we really expect cost to factor into their decisions?

What have teams done to give engineers enough cost visibility to make better decisions without turning every engineer into a FinOps specialist?