> If you agree that teaching people to code will result in more professional software developers, which seems reasonable to me, we'll have more of them and the cost of any one of them will be reduced.

If I may disagree - you're assuming that the 'demand' for software developers is fixed. But, we know that it isn't. In fact, more software developers working on software may actually increase the demand for software talent, particularly if these developers go on to start companies themselves =).