Are you a coder? Where is your billion dollar application then? If one is so capable of building something, why haven't you built XYZ and sold it for many millions already?
The reasons already given - any execution HARD. Executing correctly is even harder. Executing correctly and better than the next guy is even harder still.
To further your example - you are saying the architect who makes the drawings are worthless and its the contractor who pounds the nail that is the real builder.
Not at all, in fact the architect is part of the execution chain. The just idea part would be the thousands of people that may drive past a river each day and think 'wow, a bridge would be great here.' The architect takes that idea and executes.
The reasons already given - any execution HARD. Executing correctly is even harder. Executing correctly and better than the next guy is even harder still.
To further your example - you are saying the architect who makes the drawings are worthless and its the contractor who pounds the nail that is the real builder.
Not at all, in fact the architect is part of the execution chain. The just idea part would be the thousands of people that may drive past a river each day and think 'wow, a bridge would be great here.' The architect takes that idea and executes.