What do you mean “media”? As in movies?

What you’re describing about “getting in” to places and “treasure” is a little old school. In the before times archaeology wasn’t really a thing and “antiquarians” looted old temples and tombs and sites. Their objective was to take objects which had some value.

Archaeology’s primary motivation is to learn about places, the time they were active, and the people that were active in them. Obviously finding some beautiful object or treasure is exciting, but it’s so exceedingly rare that it’s not really a consideration.

I quite like watching time team. They have a great youtube channel now but it was a BBS series for many years. I feel like this is probably about as real a depiction of “archaeology” as you’re going to get. They brush dirt away with a tiny paint brush for days and get excited when they find a tiny shard of pottery because it confirms that people were active at the site in say, the 1300s instead of the 1600s as previously thought.

In the current era, archaeologists acknowledge that accessing ancient burials and similar sites is so destructive that there are instances where we know their probably is treasure and other wonders but decide to leave it. The most famous example is The Mausoleum of Qin Shi, protected by the Terracotta army. There are other similar examples.