AP,
I coached and managed a youth travel team all the way to 14 years old. A lot of what I witnessed started before 14 years old. Some travel coaches did something about it, and others turned a blind eye to it. People notice this stuff, and take mental notes. We had a number of travel teams in our area (Virginia is a hot bed for baseball), and I watched these kids grow up and play in high school. Most of them grew out of the bad behavior due to their parents and their high school coaches. There were a few that did not, and in every case it was a parent that was enabling and defending the son's behavior.
My 3 sons went to 2 different high schools. My oldest and middle son attended a high school that had a difficult time hiring and keeping a head baseball coach. They did the best they could do under the circumstances. But the bottom line is the players believed they had leverage over the coach as they were not very deep nor did the coach have a lot of experience dealing with it. Their starting nine was very competitive but beyond that there was typically not a lot of experience to back them up. So, there was a lot of acting out and it wasn't pretty. Some parents stepped in and some parents did nothing for whatever reason. Contrast that with my youngest son, who went to our neighborhood high school and had talent coming out its ears every year. The Coach was top shelf and experienced. He didn't take any sh*t from anyone including parents. He had no problem taking anyone out of the lineup or kicking them off the team. My oldest son played on a very elite travel team from 15-17U. There were a couple players on that team that liked to party pretty much all the time (if you catch my drift). Both of these guys had significant talent, and probably could have played anywhere including D1 P5s...they certainly got many looks by D1 P5s. I believe their behavior, attitude and work ethic finally caught up with them. They had a reputation for being disrespectful on the field. Despite all of this, a college team took a chance on them. However, they were gone by 2nd semester freshman year due to bad grades and ganja.
Only my oldest son played college baseball. I didn't see anything blatantly disrespectful in my 4 years watching him or the teams he played. He did tell me there was a lot of "jawing" on the field, but it was generally stuff that made him laugh. I can't speak to summer college baseball as my son did not play there. He worked engineering internships during the summer.
So, my observations are that is that it starts young in youth rec ball or travel ball. It either goes checked or unchecked in youth baseball then high school then travel baseball. If it still goes unchecked then it is in the hands of the college coach. Let's face it....putting it in the hands of the college coach is the wrong place. If that college coach is getting productivity out of that player, he is willing to take some on some crap and further enable the behavior.
Just my experience......