It’s all about aperture. You didn’t tell about those. For travel, street and landscapes you can use anything. For animals and sports you need 200mm f. 2.8 or 400mm f.5.6. That’s to separate the subject from the background - you can’t decide what there is on the back. To take photos of sports or animals with regular lens (50mm) or wide-angle you need to use remote controls and/or ir-traps -and- you will want to use off camera flash to separate the subject from the background.
Yes. You can get the coolest event photos with it combined with an off camera flash with a small soft box kept in left hand. You already have 24-105 for group shots indoor so 50mm 1.2/1.4/1.8 makes your set complete.