@BroccoliPizzas and others, oh, I can well imagine that there are people in the situation you describe - not able to afford it, having money in the family but not being able to access it, having another health condition that makes it unsuitable, having tried and had dreadful side-effects. And I know that I wouldn't know these things about that person.
But, this was a thread for opinions you wouldn't usually admit, and that's mine. I realize it isn't kind and probably isn't fair.
But, like @minuette1, I know women in my social circle who have lots of money, and speak a lot about how they think weight-loss injections are dangerous and are cheating. And yet, at the same time, they try one crazy diet after another (the person I speak of in my original post, who has really piled on weight, has mentioned Fast800, cabbage soup diet, slimming world). These diets seem much more dangerous and unhealthy to me.
I am probably biased by the fact that using weight loss injections and losing 75 lbs has been one of the easiest things I've ever done. I used to be fat, and now I'm not. I realize that my eating used to be disordered, and now it's not. I used to think about food non-stop (if there was a packet of chocolate biscuits in the cupboard, I couldn't think of anything else until I had eaten the whole lot. I would regularly eat a whole 12 pack multi-pack of crisps - I just couldn't stop, even though I felt sick as I was doing it and awful, both physically and mentally, afterwards). I just can't understand why (if you can - exceptions listed above exempted), you wouldn't try it. And why you would see your "not trying" as a sign of moral superiority, as my colleague does, when really, you just seem fat and exhausted.