As the chief legal officer at GE for nearly 20 years, I was part of the senior management group that sought to fuse high performance with high integrity. No one was more demanding about hitting financial targets than Jack Welch or his successor, Jeff Immelt. But both knew that employees up and down the ranks face the temptation to make the numbers by fudging the accounts, cutting corners, or worse. Unconstrained, these internal pressures—made more intense by corruption in emerging markets, demanding customers, and unscrupulous competitors—can lead to corrupt capitalism.

A version of this article appeared in the April 2007 issue of Harvard Business Review.