I was working at a company at one point that got a contract to build something I viewed equivalent to malware. Immediately I brought it up to several higher-ups that this was not something I was willing to do. One of them brought up the argument "If we don't do it someone else will."
This mentality scares the shit out of me, but it explains a lot of horrible things in the industry.
Believing in that mentality is worse than the reality of the situation. At least if you say no there's a chance it doesn't happen or it gets passed to someone worse than you. If you say yes then not only are you complicit, you are actively enforcing that gloomy mentality for other engineers. Just say no.
0.0.0.0/0 0::0/0
You didn't specify it couldn't be in CIDR block notation...