Okay, so look. This is how publishing works:
- You spend a lot of time, effort, and occasionally money on a project. You work your ass off getting it done, and then you work your ass off again polishing it and getting it really done.
- Then you release it into the wilds of the world. You make it available as best you can, and offer it up for consumption.
- Maybe some people will be impressed with it, buy it, use it. Maybe they'll say nice things about it. Maybe they won't.
As a publisher, you have control over steps 1 and 2. You have no control whatsoever over step 3. Ever.
Hopefully, by the time you're done with step 1, you've got a project that you're proud of. By the time you're done with step 2, you've presented it in such a way that you're proud of that. But because you have no control over step 3, you cannot take pride in the reception of your product. You didn't do that. Your pride in your work comes from making a good product and presenting it well. The feel-good that you get from the good reception isn't pride; it's fame. Fame is never earned; it is not something to be proud of.
"But!" you might say, "surely the quality of the product has something to do with its reception! Surely a good book sells well!" To which the answer is, in all seriousness, "No."
There is no correlation between any standard of quality and actual sales. Let me repeat that: there is no correlation between quality and sales. Sales are not derived from quality, they're derived from utility. Utility is, roughly, how useful a given product is for a given customer.