Now, if you want the answer to the morals question; the needs of the many will always outweigh the needs of the few, and there's nothing moral about it. It's entirely about the continued existence of our species and what is best for the future. "Cruel" as it may be, but we're all just specks of dust compared to the number of people that will come after us, and we need to ensure that they will have the means and needs to continue surviving, or else we might as well just go extinct now.
No one person will ever be as important as the whole of us; people in this modern society are defined by positions, which can be filled by others. Nowadays, people are pushing for individualism and trying to rise above the rest of the crowd for "popularity", but that's not how society is designed to work, and I can promise it'll end badly.
Anybody who says "oh but thinking about the one man, you're a murderer!"; as I said, there are no morals in this scenario. I've known death as long as I've lived since my Dad and his whole family were funeral directors. People die all the goddam time. Morals are a man-made construct, not a universal law, and everybody has different morals.
theres a timer and a lever if you don't pull the lever 100 people die if you pull the lever 1 person dies
Now, you're assuming that the timer system can't be modified or stopped, similar to how a bomb can be defused. And what connection do I have to these people? There's nothing there for me to give a stuff. I can do either thing because it's not going to affect me; I was just the guy who happened to be in the control room and I made a call. I wasn't wrong or right because people died either way.
using scenarios helps give you a realistic sense of how to answer, especially with something as dire as life and death
No, it just makes me want to see all the contextual flaws of the scenario.