Science wouldn't be a value as such, rather, Shelley can be seen as critiquing 19th century what with the scientific discoveries that were prevalent in her time. Essentially, shes putting science in a negative light, as a way of not only challenging but taking up the role of god which would have been frowned upon in society, and also the monster that arises from Victor's expermentations, leading to subsequent destruction and chaos. Remember the Romantics, which was linked to Shelley's time, were critical of science, so in a way this is exhibitied in her work.
And with Scott's time, you need to familiarise yourself with the context of the 1980s and do some research there. That era was particularly associated with corporate greed, that "greed is good" which is manifestly epitomised by the Tyrell Corporation - they're total neglect of humanity and focus on making profit, etc.