In a deflationary world, ideas are more valuable than products. If you have ideas that can help people improve their businesses, then you will make a lot of money.
This is not quite the whole truth. Ideas, in and off themselves, are worthless. It is the execution of those ideas that has value. The fact that the execution relies on immaterial properties (a webinar isn’t a physical item) doesn’t change the fact that there are lots of people who have the idea of creating webinars, but only a few who follow through on it.
Thus the idea isn’t what’s valuable. It’s still the product but the product has changed form. Ideas are still a dime a dozen and will always be as long as humans are a creative species (who knows, we might evolve away from that someday but not for the next 100 000 years…).
To quote Edison: Genius is 1% inspiration and 99% perspiration.
Your execution is what matters, your idea is secondary at best.