Maybe there's another way to look at this: In hindsight.
An idea that succeeds to garner users, clients or customers is one that probably solved a problem, filled a need or fed an interest. An idea that fails. Well, it was just an idea.
Users buy stuff that they want, are attracted to and after all that maybe has some usable value.
When people buy your product, they are buying your story.
So solve problems but its not a sufficient condition for success. Also make it something that builds their self esteems, attracts them and make it look like something they would want.
And yes, you can leave out the value and do all the other parts and make a killing. I'm sure you can fill in teh examples here ...
Let then consider the value of an idea, from a business perspective, as how many people will see a benefit in adopting the product.
Conservatism is a property of human psychology. People will change or reconsider their current habit only if there is a strong incentive to. It's like static friction force.
An idea that succeeds to garner users, clients or customers is one that probably solved a problem, filled a need or fed an interest. An idea that fails. Well, it was just an idea.