Perhaps this comment spells the end of my account but I can’t not say this.
What you can create for your employer is and always was the ONLY reason they valued you. And why would you ever expect anything different? You are not hired for your suffering, your experience, the time you spent learning everything you know OTHER THAN insofar as it helps deliver your employer value.
By the way, I do not think your time has been wasted! Your knowledge and experience are extremely useful to avoid entire categories of problems that a naive LLM-only approach would produce in spades.
THAT, I believe, is what our craft truly is.