Morris was a bit of a mixed bag :(
"(Morris's) father owned the processing plant that became the major supplier of arsenic used in green pigments in 1867. Morris made his own fortune from shares in the company..."
"...Morris turned a blind eye to the possible danger in which he placed his customers."
"He was on the board of directors of an arsenic mining company,"
"Morris dismissed the assertion that arsenic was poisonous..."
https://www.wired.com/2003/06/this-artist-painted-with-poison/