This is one of the tradeoffs made to make the outputs safer. One of the ideas floating around is that some of the open source models are better simply because they don't undergo the same alignment / safety tuning as the large models by industry labs. It'll be interesting to see how LLMs improve because safety is a requirement but how can it be accomplished without reducing performance.
AI cannot hurt you so "safety" just isn't the right word to use here. Nothing about this system prompt is concerned with safety, and it would clearly be better for the end users to just scrap the whole thing giving users direct access to DALL-E 3 without GPT sitting in the middle as a censor.
Now would such a thing be "safe" in legal terms, in the US justice system? Would it be "safe" for some of the employee's social lives? Maybe not, but, safety isn't the right word to use for those concerns.