It's interesting to tie that in with the 5-10x productivity claim - what about your working environment? If you're working in a negative environment motivation is staunched which inevitably affects motivation.
Another point about productivity - if you're working in an environment where people want crap shovelled out as soon as possible, then the people who care about maintainability are likely to take longer on software (though once you factor in support, something often shovelled under the carpet, you will often out-gun the 'put out crap then fix it up' approach), and thus appear less productive than mediocre colleagues.
Don't get me wrong, I do agree with Joel on most of these points, and I think he's probably talking about 9-5 developers who have little motivation to improve rather than passionate but burn-out or disillusioned developers.
Another point about productivity - if you're working in an environment where people want crap shovelled out as soon as possible, then the people who care about maintainability are likely to take longer on software (though once you factor in support, something often shovelled under the carpet, you will often out-gun the 'put out crap then fix it up' approach), and thus appear less productive than mediocre colleagues.
Don't get me wrong, I do agree with Joel on most of these points, and I think he's probably talking about 9-5 developers who have little motivation to improve rather than passionate but burn-out or disillusioned developers.