While the SEC is a power conference, keep in mind that that money usually doesn't find its way to the non-football sports as easily.
WBB Head Coaching salaries from a year ago...
South Carolina $2,900,000
LSU $2,520,000
Texas A&M $1,000,000
Georgia $950,000
Tennessee $800,000
Mississippi $800,000
Florida $700,000
Missouri $650,000
Arkansas $600,000
Auburn $568,720
Mississippi State $550,000
Alabama $500,000
Kentucky $487,000
The average salary for an SEC women's basketball coach (not including LSU or USC which are the national championship winning coaches) is $691,429.
Kim is making $275,000 at Marshall. While $275k was a big jump for Marshall, we'd only need to double her salary to put her amongst SEC coach salaries. It's not like its a whole order of magnitude difference (well, outside of LSU and USC, which by definition are an order of magnitude difference).