When Hillary was first lady of Arkansas she was named to Walmart board of directors and got free

Why Did My Union Give an Early Endorsement to Hillary Clinton Over Bernie Sanders?
http://inthesetimes.com/working/entry/18766/afge-union-endorsement-hillary-clinton-bernie-sanders-labor

The leadership of my union, the American Federation of Government Employees (AFGE), officially endorsed former Secretary of State Hillary Clinton for president on December 10. The endorsement came after union leadership had informed its members on November 17 that they would not make a presidential endorsement for at least two more months and without holding a membership vote.

Fifty-five rank-and-file union members from over 50 different AFGE locals signed on to a letter developed by Labor for Bernie sent to AFGE leaders on November 16 that urged the union “to oppose an early primary endorsement for Hillary Clinton” and expressed support for Senator Bernie Sanders.

In response to the petition and the demand that the union refrain from issuing an early endorsement, National Vice President Gerald Swanke, from District 11, responded via email: "We're not. I don't expect an endorsement until at least the legislative conference."

The AFGE Legislative Conference of 2016 is scheduled for February 8, 2016. With the sense of urgency removed, many AFGE members began preparing to attend the conference to make the argument there to endorse Sanders. (more at link)

On other topics, like Wal-Mart’s vehement anti-unionism, for example, she was largely silent, they said.
...

Mrs. Clinton largely sat on the sidelines when it came to Wal-Mart and unions, board members said. Since its founding in 1962, Wal-Mart has fought unionization efforts at its stores and warehouses, employing hard-nosed tactics — like allegedly firing union supporters and spying on employees — that have become the subject of legal complaints against the company.

A special team at Wal-Mart handled those activities, but Mr. Walton was vocal in his opposition to unions. Indeed, he appointed the lawyer who oversaw the company’s union monitoring, Mr. Tate, to the board, where he served with Mrs. Clinton.

During their meetings and private conversations, Mrs. Clinton never voiced objections to Wal-Mart’s stance on unions, said Mr. Tate and John A. Cooper, another board member.
...