I think that a better explanation of the problem you're facing is that you're wasting your time taking conversations with people who you quite obviously don't have an opportunity for at GoCardless. For example, your jobs page is filled with engineering roles. Unless you're talking to someone who is an engineer, who might just happen to also have an MBA, why are you taking the conversation?

Disclaimer: I have an MBA from a top tier school, and despite that fact, I have the utmost respect for execution. I clean data, I test, I write database queries that include all sorts of joins and I even code a little. The big data company I co-founded in NYC (CB Insights http://www.cbinsights.com) is aggressively seeking talented PHP / MySQL developers. If you happen to have an MBA, that's cool, but regardless we take all shapes and sizes so long as you like to code and ship weekly. Email me at the address in my profile if interested.