If you need to type numbers really fast, of course there’s no beating numlock. 10 key for the win. Of course that doesn’t get at why not just leave it as 10 key forever and skip the arrows. I know a lot of older programs… like msdos older…required the use of the arrow keys. And some people do prefer it for their cursor, and it doesn’t hurt to provide the option.
What was the crime of Sodom and Gomorrah? According to my rabbi (and supported by the writings and prophets), it was making charity illegal. The punishment for breaking said crime was gang raping the receiver of said charity. Only rich people were allowed in the cities, you see, with the idea that this would make the cities stronger. Drive out the weak and undesirable was the idea.