Important to note is that when you allow for (a lot) more timers/processes to run, you might start to see impact on the performance of the end user applications. What you could do however, when you have a farm of multiple frontend servers, is to set 1 server specifically to run all the timers and processes, while the other frontend servers don't run any of those and only handle user requests.
It's rarely needed, but in certain use cases could prove useful.