Men have to compete with other men above their level to get a woman on their level. They know that the woman is fielding offers from dudes that just want to pump and dump them, because at some point they have been that dude, and still might be that dude with other chicks. They tend to overcompensate to try to prove that they are really in for the long haul and it results in simping.
I've simped for a chick that was an 8/10 lookswise at the same time as I was dogging out a chick that was a 6/10. You start to feel that there is another guy that is doing what you're doing to your jumpoff, to the girl you think is wifey material. Of course, you could make the jumpoff your wife, but most brehs ain't gonna do that.
Other than building a better social network and being able to interact with various attractive women over a period of time, I really don't know what brehs can do to pull a woman on their level. If they are just approaching them randomly or online, they will always have to compete with the dreamsellers, and always will be behind the 8-ball. Men with strong social networks are much less likely to simp because they are in a position where women on their level can appreciate them and be receptive, instead of them only getting action from random bustdowns on Tinder.