I think you (your club, not specifically yourself) overestimate your players a bit too much.
I think most see it as we understand that there is a market premium on English talent within the top two divisions. We buy players with significant potential and then put an awful lot of effort into developing them. Tarkowski, Hogan, Gray, Jota, etc. we paid small amounts for them and stood our ground when it came to bids for them. We got what we wanted - largely, anyway, as Burnley took the naughty route and bid for Tarkowski on the eve of playing us - and we've received significant fees for them.
We've not had a player sulk and throw their toys out when we've turned bids down and they've not joined a new club. So interested to hear your thoughts on which of our players your opinion related to.