Because those misconceptions can cause significant harm to the self image of men. Western culture in particular is bombarded by pornography of top 1 percentile guys satisfying women for long stretches of time, then there is the porn genre of women making fun of "small penis" guys, but even those guys aren't small, they are just porn small, the vast majority are well above the actual scientific average. Seeing nothing but big penises in pornography, and the only small penises aren't actually small yet are being made fun of by the actresses, these things have an effect on the psyche of many men, especially young men and teens who consume pornography, even those who are above the scientific average. In the 2000's alone the false misconceptions about penis size lead to the rise of Enzyte, a total snake oil product claiming to offer "male enhancement" which was advertised heavily on tv and ended up the subject of lawsuits with the owner of the company ending up in jail. But even today we still have many men who have a perfectly adequate size terrified that they are too small, buying various other male enhancement products and even going to plastic surgeons to get a lengthening surgery or inflatable girth implants. We need to end those misconceptions about size that has lead our society to this point.
I don't know, maybe you're right, can't tell.
But now I wonder if you're below average
"Quagmire, are you the type of guy who takes 'no' for an answer ?"
"My lawyer doesn't allow me to answer that question"
PSN ID: skmblake | Feel free to add me