This is such a dicey area. Whats more important though. Fines? Penalties?
Before I make my next point I would like to say this is not an endorsement of Meriweather.
Players in the NFL now have grown to be a part of a violent game. Endorsing something for so long, just to have a law suit come up and conveniently start changing rules is such a double standard. Is the NFL doing the right thing? I don't know. Do I agree that the league needs to be safe... ABSOLUTELY. But here's where I struggle. The NFL doesn't appear to want anything to do with player development until players are representing the shield. Colleges are the ones attacking the development of equipment to make it safer... does the NFL help support these systems. (They might be, but I sure as heck don't hear about it)
In addition to that... how about they reach out to youth/high school groups. They don't even have to payroll it completely, but be a part of it. I know for a fact that youth groups are requiring their coaches to go through concussion training.. where's the NFL there? How about they attack the group coming up so they don't have 150 penalty yards a game. This is a MULTI BILLION DOLLAR entity. They could easily employ a group to help with youth and high school coaching, teaching players the correct way to hit/tackle and avoid injuring themselves as well as others. If the NFL was to help with the refs on those levels, helping to train them, these plays could be enforced earlier, helping to prevent major injuries once players are big enough to inflict a hit that could sustain a concussion.
Maybe i'm off base here, but if you want to make a difference, some fines and penalties aren't the be all end all.