Yes like some others said, you can almost double the salary on that chart.
If you go by reports of teams losing money, then you'd believe that all MLS, NBA and NHL teams lose money.
I was reading or listening to something the other day. Don't remember exactly where. Losses for sports teams get creative accounting. The depreciate players value each year and report that as a loss.
For example. Play A gets paid 5/m per year. At the end of the year they say he's a year older and worth 4/m now. The team counts that as a 1/m loss. They get fudgy with those numbers.
Serie A is having issues. They were attracting top international talent. To PL was nothing not to long ago. They started to overpay and a lot of players went there. Now a lot of PL teams are in trouble and there's talk that they will be in the same position as Serie A is now in the not so distant future. The CL is a big deal in Europe money wise. Realistically maybe 4 PL teams can make it and the same goes for Seria A. That is why Milan is trying to sign everyone under the sun all of a sudden, they realize how important CL is to them financially. Also the stadiuns in Serie A are a disaster.
As I mentioned previously, I know Joseph Tacopina through some work I do. He's a NYC based owner in Bologna. He was the one pushing Piazza to buy Parma. He said on the books Parma lost a lot of money, but in reality they could easily make money. That it was a fantastic investment.
All of this on top of the fact that at least in most American sports leagues the value of the franchises are constantly rising. The NBA owners cry about loosing money constantly while the value of their ownership sky rockets. If I told you that if you give me $10,000 up front, and every year you had to pay me $500, but every 4 years your $10,000 would double, would you really be running around crying that you are loosing money? 12 years in you would have $80,000 and it would have cost you $6000. This is essentially what owners do all the time. And thats not even factoring your point that they may be playing accounting games and not truly loosing any money.