The movie's main argument seems to be that it's better to sacrifice a few to save a great many (at least concerning the "treasure" that everyone is after). Characters do also persevere against challenging odds.
Lots of guns and shooting. Characters hit with arrows. Deaths. Fighting, punching. Beating with a shovel. Rifle butt to the head. Kick in the face. Lara takes punishing falls and fights and is punched by men. (She often cries in pain.) Splinter of wood through stomach. Stabbing with spikes. Bloody wounds shown. Bicycle crashes. Explosions. Lots of skeletons.
Lara wears a tight tank top throughout, though she's not as sexualized here as in previous incarnations.
A few uses of "s--t." Characters start to use "f--k," but stop (making only a "fuh" sound).
Offscreen tie-ins to video games, other merchandise.
Drinking, Drugs & Smoking
A character is said to be drunk; he's later shown nursing a hangover.