This kind of reminds me of a story I heard a long time ago (not saying it necessarily applies to OP's situation). I don't remember all the details so I'll improvise.
A man's boat wouldn't start, even after he worked on it for hours. So he called a professional to fix it. The professional examined the boat, tested a few things, replaced a part and fixed the boat in about 5-10 minutes. Later the customer received a bill for $255, $5 for the part and $250 to fix it. The customer was upset and called asking why he had to pay $250 to fix something that cost $5 and only took a couple of minutes to replace. The professional explained that the $250 wasn't just for replacing the part. He was paying for his knowledge of knowing what to fix and how to fix it.
I'm sure someone probably heard a similar story and I probably chopped it up
But hopefully, you get the gist.