Sean, they are not ignored, but their lives are remembered where they made their mark. At best, they get a mention on the national news a few times, like the Dallas attack that claimed five officers last July. Prior to their deaths, they made their mark within the community and that is where they will be remembered. Likewise, when a member of the military dies in action, they will be remembered within the communities they lived.
The celebrities are remembered in the community where they made their mark. The difference is they made their mark upon the world instead of a home town or county, of even state.
We have two days a year to remember the men and women that served in law enforcement and the military. The Peace Officers Memorial Day is May 15, just a few weeks before Memorial Day for our military. On top of that, we have Veterans Day to honor those who served while they are still alive. And don't think that we don't remember those that have passed on, either.
The end of the year is bittersweet as we think about those we lost during the year. As the internet is global, the focus is on those who passed that we, as a global community, have a common knowledge of.
This year, we lost our youngest brother. He was a veteran and local celebrity in eastern Ohio. He chose to be a big fish in a little pond. He had a fairly large fan base considering he was only a bar DJ. I didn't complain that total strangers aren't remembering him at the end of the year, but when I mentioned on a celebrity post that he's the one I'd miss the most, the outpouring of compassion was strong within the community of imgflip.
I considered making a post for community members to post a meme of the ones they lost this past year. Many won't due to them preferring their anonymity that imgflip has. I may still do that and see what happens.
Complaining about people being ignored in death does little or nothing for those that are gone. At least posting a remembrance, no matter how fleeting it may be, is a positive way to remember those no longer here.