It's easy to deploy grief and call it a day if you aren't the one cleaning up afterwards. On the other hand the blaming mentality never led anyone anywhere so I'm not really sure how one is to address this.

My guess would be the cause is unreasonable corporate pressure for productivity, so if this is the case the natural answer would be to give people more time to think about architecture, create incentives for group studies and laboratories and remove incentives that lead to the so called "résumé-driven development"