Because the display of a painting in a prestigious museum can increase its value, the loan can be seen as breaking conflict-of-interest and self-dealing rules and a complaint was filed with the IRS and the Michigan attorney general. The director says that all procedures were properly followed, being shown at the museum wouldn’t really affect the value of an Old Master, and, basically, if you can get the long-term loan of an El Greco, why wouldn’t you? – The New York Times