I could cite multiple reasons, but the main one I see is that the people who pay for and specify the requirements of a project are often nontechnical and don't

I could cite multiple reasons, but the main one I see is that the people who pay for and specify the requirements of a project are often nontechnical and don't delegate any decision making authority to technical personnel, no matter how much talent is in the pool. Repeated attempts to bring up issues are met with blank stares, as if a foreign language is being used (and to nontechnical people, it is). I've gotten calls at 5 PM on a Friday that "Our new site (hosted on a third party server) is going live on Monday! We need a domain and an SSL certificate." In a corporate or institutional environment, bureaucratic obstacles can make such a request impossible. Throw in a VIP who won't budge, and you're about to ruin the weekend for multiple employees who will remain gun-shy about disclosing any problems in the future.