I'm asking myself the same question.
While Jangles is generalizing and I don't entirely agree, he makes a pretty valid point. I think I back away from clear goals because it makes slow progress/stalling easier to mentally justify. Yes I do have a bung leg, but I am still gaining slowly, but it's pretty eye opening to realise how far off the game I am, and it's not that I'm out to "win" but I think anyone who does anything will naturally compare themselves to others who do the same thing.
I don't have any clear goals, my goal initially was squat and deadlift because I never had and it was obvious I had a strength imbalance. When I've thought about numbers I thought 140 squat and 160 dead would be good for me given the leg and that I'd like to be running again also.
Holistically, why am I training at all? Probably because I was always the skinny kid and I've never really full shed that mindset, so you'd say my reasons are purely egotistical/aesthetic.
I do enjoy the extra strength though, dropped the box in my car on the weekend and was surprised how light it was, because essentially I was just benching it lol
In terms of fitness, yeah it helps, but I could be running more and doing less weights and still be plenty fit.
So I dunno, I guess that's why my posts come across as all over the shop as Jangles pointed out. I will say that deading has made my back heaps better and I'm happy about that.