Which society? What glorification? According to https://en.wikipedia.org/wiki/List_of_countries_by_body_mass..., society has clearly moved in the complete opposite direction, with approximately 30% of the world population considered obese. I am aware that BMI doesn't take into account muscle mass, but really, most people who are obese by BMI standards aren't there due to powerlifting. They are simply obese.
It is possible to work out too much, for sure. Most serious exercise programs have "easy weeks" specifically to give the body time to rebuild and recover. I've done many triathlons and sure, there is glorification of the IronMan distance tri; but it should be something that is glorified. It's an incredibly challenging event and worthy of praise.
If anything, I think society needs to encourage, explicitly and with great zeal:
1. Hard exercise (long runs, swimming, lifting, rugby, cycling, etc.) at a bare minimum of 3 times per week for 1 hour or more.
2. The basic physiological fact of "Calories In, Calories out". A person is fat because they consume more calories than they burn (barring certain medical conditions/medications that cause weight gain). That's it.
3. Quality fuel. Ensuring people eat foods that provide the essential amino acids, necessary vitamins and minerals, and an even macro distribution of carbs, fats, and proteins.
Lastly, I would gladly trade [2, 3, 4] in exchange for living a fulfilling and healthy life spent exercising and accomplishing goals like completing an IronMan Triathlon or breaking into the thousand pound club for lifting. The other option is wasting my life eating chips on my couch and getting fat.