Its ROI. For any new company starting off, they will quickly realize that all non-js agents are either bots or very low-powered machines. With many new companies, who base their entire existence on the web and customers' ability to access it, these two groups are not their target audience so why bother making a JS free, static site when you don't need those customers' business?
On the flip side, government sites are (or at least should be) developed with a high degree of accessibility in mind due to laws that typically prevent anything less. Their reach is much higher and their audience is potentially every citizen in their jurisdiction.
On the flip side, government sites are (or at least should be) developed with a high degree of accessibility in mind due to laws that typically prevent anything less. Their reach is much higher and their audience is potentially every citizen in their jurisdiction.