Why not? I'm assuming you're implying that Marie Curie's research shortened her life. Marie Curie lived until age 66 in 1934. Life expectancy according to this (http://ourworldindata.org/data/population-growth-vital-stati...)
random google search for 1935 in France was 58.09. This means that Marie Curie's life was 113% longer then usual for her time. The current life expectancy in the USA is 78.74 according to the top google result, so if it helps you can think of her as living to about 89 in our terms. In other words despite her research she had a long fruitful life. I wish I had the chance to make as great an impact on the world as she did.