There are people who die everyday do to defend your way of life.
No, there aren't. Citation needed.
There are people who die everyday who stand by to put themselves in the line of fire on your behalf. There are others who die everyday to ensure you and your family can be saved from a fire. There are more people who die everyday who standby to pull you out of your wrecked car. There are even more people who die everyday and risk their life to provide you with medical care. Their are pilots who standby to rush you to the hospital in a critical event. They don't plan on sacrificing themselves for you specifically, but it happens sometimes.
None of those people is actually deliberately committing suicide in order to save another person.
There's a bunch of people (400k I think) working at Amazon to sell you crap and ship that crap to you. They (most of them) have to drive to work every day. Driving a car in America is one of the most likely ways of dying, right behind heart attacks and cancer, and if you're younger, it's *the* most likely way for you to die, and therefore, the most risky thing you can do.
I'm sorry, but I'm not going to hail Amazon tech workers as heroes for "risking their lives" every day to write code to help sell me stuff online.
Granted, rushing into burning buildings is probably more dangerous that braving Seattle traffic (though I'm really not sure; firefighters don't actually die that often these days), but it isn't quite the same as jumping onto a grenade.
Every one of us risks dying every day to do whatever it is we do. Some activities are more risky than others (staying at home carries the risks of home invasion and carbon monoxide poisoning), but very few of them are *that* dangerous and likely to kill you (more than medical problems due to old age). There is greater risk with some jobs, namely firefighting and piloting (esp. in smaller aircraft and helicopters; not in big jets, you're much more likely to die in a car or maybe even getting hit by an asteroid). EMS piloting is a little dangerous because of wire strikes. Point is, none of these people are out there with the idea of "sacrificing themselves" for anyone. They're doing a mildly more dangerous job than the average perhaps, hoping to help people, and get paid for it, and they accept the risk that comes along with it. The risk they carry in these jobs is probably nowhere near as great as, for instance, underwater welding, which is not directly tied to saving anyone's life.
Everything you do carries some risk, and we all do a risk/benefit computation when we do it. If someone is trapped in a wrecked car and I have the tools and ability to free them, do I do that or leave them in there? When was the last time a wrecked car exploded? It's quite rare these days; they usually just catch fire, so the risk is worth it to anyone who signs up for that job. When was the last time a Medivac helicopter crashed and killed the pilot? I'm sure it's happened, but it's probably much less often than some guy with more money than brains and a private pilot's license wrecking (private pilots crash all the time; Medivacs, not so much). There again, the risk is surely worth it to the pilot to have that job. None of these people are jumping on grenades.
And if you're talking about cops, their risk is much lower than that of taxi drivers. They're not stepping in front of bullets for anyone, because they're not there fast enough to make a difference in almost every case. That's TV show drama. Cops just show up afterwards and either shoot an unarmed black guy or just arrest someone and take down a report for them to be prosecuted for the crime.