For people who like museums, otherwise most people don't care and most (if not all) of the stuff we do everyday doesn't rely on knowledge gained from archeologist findings.
Archeology does not build infrastructure to make people's lives easier but neither does any form of entertainment like Cinema, Music, Theater, Museums and others.
Medicine law and engineering are wonderful jobs, and necessary to live. But Art, History, Philosophy and Music are things we live for
It's fine if you're not a fan of it, but it's quite childish to think certain things are of less value because you personally don't like it.
Eh not completely true as there is a thing called "history" we all have to/had to learn and is kinda important and archeologists play a major role in there . So its not only for people who like museums . Also biologists also make use of the works of archeologists for basing some things about evolution, earlier species, geologists also use the works of archaeologists etc . And that's just from the top of my head and there could be and I'm pretty sure there are a lot of other important things that are held up by the work of archeologists .