Objectives in the Meta

I have been arguing with teammates about what should be done when. Objectives seem to be out of wack to me when teammates break off after a team fight to do drag.

An example would be a 5 on 5 that results in a 2 dead for us and all dead for them. I say take the closest turret that has a minion wave on it and less than full health. Mind you this is mid game so** adcs** have their first item complete. Instead my team will want to take dragon and "back" instead of the turret and a possible dragon. If you drag, you can't get the turret but if you get the turret (with a minion wave) while they are re-spawning you might also get the drag. Even if you can't get it this trip, the odds of the other team coming back to mid or bot with no turret protection is slim. They won't venture dragon while you are gone. They might not even have vision on any part of the river in the time it takes to for a "team fight, re-spawn, travel time back to lane".

What are the pros and cons? What would you do and what order of priority do you put objectives in when the opposing team is weakened? I say: Dragon after successful bot gank (early game) Mid turrets then bot turrets after any gank that gets them out of lane Turrets first when you can kill them during the respawn (mid game) then drag and/or buffs (I'm not a jungler) Top lane turrets last assuming they are the strongest when you read this post. Whenever possible after top gank Baron when ready for end game