The entire article could've been summarized thus:
The Obama family will also need income, to support themselves as well as the post-White House staffs they are building. Michelle Obama, who was once her family’s primary breadwinner, hasn’t earned a salary in eight years.
And she didn't earn it before eight years ago, either.
For money, former first ladies and presidents have accepted paid offers to speak — not always without controversy — in addition to championing favorite causes.
Correct. The Clintons, who set the bar for collecting money post presidency, incurred no controversy in the MSM at all.