As a core developer you are the equivalent of the CEO and in so you have the responsibility towards the share holders (investors) to be on top of this.
This vision inherited from the promises you keep hearing from most altcoin "devs" is a complete fallacy. Nobody is promising any profit to anyone with Monero. No more than with Bitcoin, by the way.
Just be grateful to people investing (much) more of their time than you to develop a coin and an economy, and donate if you want to support them. But don't assume they owe anything to you.