The thing about a cheap general-purpose single-board computer marketed towards schools, makers and hobbyists is that the intended use case is very open ended. Pi computers are being used for all sorts of things not envisioned by the original engineers. That's good, because the versatility is a relief from the boring single-functions of a media player, game console, camera or microwave oven. The creativity of users thinking up new things to do with the Pi is what has led to the success in the first place.
For reference, Cortex-A53 cores that include hardware-accelerated cryptographic extensions perform AES more than 5 times faster than the same processor without those extensions. More information is in this thread. Unfortunately, the person who ran the tests was banned for being rude (and arguing about barrel connectors). Never mind that. I would expect the difference between an A72 core without the cryptographic extensions (as in the Pi 4) and one that includes those extensions might be less.
Has anyone run the corresponding OpenSSL benchmarks on the Pi 4 for comparison?