Its a team based objective, you shouldnt be allowed to solo it. If one champion goes MIA you shouldnt have to worry about Baron as they are likely: walking, farming, jg'ling, shopping, etc.
Jungle camps and minions aren't team-based-objectives. Theres no reason to make them stronger. Dragon feels more like another camp to farm rather then the Might, Intimidating, Fire Breathing Serpent that should be earned. Baron though for sure should be a force to be reckoned with.
Please don't blow my argument up to huge preportions then judge the result as you did. Theres no reason to buff jg camps and minions. Just because we buff Baron to what its lore, Riot, and what should be doesn't mean we should go crazy. When they redid SR, they didn't say: "Why stop here, why not redo all the champions kits!". A simple buff would be:
Intimidation: If there are less then 2/3 champions on the same team near the Baron Nashor while it is combat, the champion it is in combat with loses its courage and gets Grievous Wounds for the duration it is in combat.
Intimidation could lower AS, damage, or anything else if necessary. I think this would be a good addition and make League more of a TEAM based game, which its supposed to be.