There's often a considerable delay between sales work and revenue, too. "Sales" are generally counted on the day the client signs the contract, but the company doesn't see the revenue until actual delivery.
It's more likely to be because in sales, the individual can have a major effect on the numbers that their commission is calculated on, so (as the article describes) that attracts the strongest performers, because they know that they will be well-compensated.
In positions where your personal performance doesn't have a direct and immediate effect on the numbers, the strongest performers won't be attracted to commissions. If you were part of a software development team would you want a significant part of your compensation to be at-risk based on this quarter's sales numbers? Probably not, because you know that you could bust your ass this quarter getting an important release out but still see your paycheck dive because that big potential lead backed out of signing.
Commission isn't the only mechanism of performance based compensation: bonuses and revenue and profit sharing (which commissions might be considered a subset of, I suppose) are also things. Equity (real equity, e.g. of a public company or profitable, stable company with a clear, real value) is another form.
Besides that, it's certainly possible to measure at least in aggregate the impact on revenue non-sales team members have, e.g. by the value the products they work on create. It's obviously not as clear or direct as a sale.
It's more likely to be because in sales, the individual can have a major effect on the numbers that their commission is calculated on, so (as the article describes) that attracts the strongest performers, because they know that they will be well-compensated.
In positions where your personal performance doesn't have a direct and immediate effect on the numbers, the strongest performers won't be attracted to commissions. If you were part of a software development team would you want a significant part of your compensation to be at-risk based on this quarter's sales numbers? Probably not, because you know that you could bust your ass this quarter getting an important release out but still see your paycheck dive because that big potential lead backed out of signing.