I'm very sad to be right, then... As you say, reducing Barcelona and Madrid to less than 100 M€ could afford doubling the money to all the minor clubs. That would make a more exciting competition.
On the other side, that would mean all the presidents of such clubs would rape even more their clubs and speak publically about the crisis while they put all the money in their pockets through shady credits, shady transfers... Corruption in Spain is a national disaster and a national shame.
The debt of the small teams compared to the debt of the big ones means the small clubs debt is incredibly bigger. Teams like Getafe, Mallorca or Zaragoza have a debt many times bigger than its resources. How have they reached that situation? How on earth they have been spending all those years WITHOUT resources to back it up? And why the banks have allowed it? Only for economical reasons. The presidents are interested in creating debt and the banks to take those credits and make easy money. Except the fans, everybody wins!
And now a thing I wanted to post many times all these days. That may be my own biasing towards the club I love, but trust me I'm trying to be objective and fair. BUT:
With more fairness in the money distribution, I think Barcelona would be even better than the rest. I mean, the difference between Barcelona and the 2nd would be huge. The only competition we have is Madrid, and Madrid depends a lot more on the money than us right now. Barcelona has spent less than half of what Madrid has spent in signings in the last 4 years. Imagine Madrid without half of their recent signings. Barcelona wouldn't have Alexis or should have kept Etoo instead of buying Ibra (and it could have been even better for us that way).
But Messi, Xavi, Iniesta, Valdes, Puyol, Busquets, Pedro, Thiago costed nothing and Pique was almost free (5 M€). That's a hell of a team that would beat any team in La Liga, and specially a more weak Madrid than the current one.
So, funnily, a more fair distribution of the money could imply Barcelona walking to the title easier than in the last 2 seasons! At least that's how I see it. The generation of players in the team is something that happens in the world of football only once every 20 years or so (50s Madrid, 70s Ajax, 80-90s Milan). So a fair distribution of money would make Madrid go down near the rest of teams and the rest of teams more competitive. It would compact a little all teams, except Barcelona. I know it won't last forever, so let me enjoy it while it lasts!
Remember the 80s, when there was practically no TV money. Madrid had a great team based on key homegrown and national players (Butragueño, Michel, Martin Vazquez...). They totally owned the league for 5 consecutive years, with big differences and averaging almost 3 goals per match on some seasons. That's what happens when a team "clicks" and suddenly join 5-6 exceptional players at once. The other side of the coin is that, even though Madrid was dominating, there was a lot of competition and matches were very interesting.
So I think Barcelona would dominate La Liga anyway, and probably win the league by 10+ points. But overall the matches would be a lot more interesting, as they were in the 80s even while Madrid totally owned.