My wife lost over 60lbs with weight training and running. I never encouraged her to run but she loves it.
If you look at folks who just do steady state, they can be thin but they are soft IMO.
"When I see guys working out for cosmetic reasons, I see vanity exposing them in the worst way, as cartoon characters, billboards for imbalance and insecurity. Strength reveals itself through character." -Henry Rollins