Generally, pixel perfection is not the goal in front end development. If a blanket demand exists for pixel perfection in web development, there likely also exists a gap in understanding current browsers, CSS3, and the expanding variations of device screen dimensions. Competent designers and developers are aware that from business efficiency and user experience conversion perspectives, a close approximation of a good design is the optimal goal.
I have read that the half-life of science is approximately forty years. That would mean on average, it takes about forty years for the knowledge that we think is proven fact to be proven wrong and obsolete. For engineering, the estimate drops to ten years. I have no idea what it is for software development, but in my experience, about fifteen years seemed like a good estimate until recently.
I strive to unlearn our cultural biases and leave my ego at the door every day. It can be difficult to think positively during trying times. Compromised ethics and mental abuse are unfortunately common in and out of the workplace. I believe that the effort needed to raise oneself to a higher level of understanding, inclusion, and empathy can lead toward positive outcomes such as an ethical and sustainable business model, a satisfying website experience, loyal customers, successful teams, and valued individuals.