If it is a work, then the 'E is doing a great job playing it up. However if it is not a work, then most of these so called mid carders, such as JTG; Sin Cara; Santino; etc... need to step it up, re-invent themselves (and their move-set), and work on their mic skills BEFORE they start demanding more pay and main event level matches. Heck the average low to mid-card contract pay is:
Base: $70,000 to $100,000/year
Appearance Bonus: $500
WM Week Bonus: $2,000
Merchandise Sales: 35% to 40% of total sales
Travel: Paid coach airline travel, Per Diem for all car rentals, etc...
I'd say that for what they do at this time, they get paid enough. Of course anyone can look up the "Basics" of pay for a pro wrestler, but the only way to get exact details is if the particular wrestler(s) agree and sign to hold the WWE or TNA, Etc... harmless, and agree to let their particular contract to be released for public display.