If you are an actuary you are already a data scientist.
A lot of actuaries spend most of their life inside of Excel. Excel won't cut it with Big Data.
source: http://blog.kaggle.com/2012/10/04/engineering-practices-in-d...
Software development is important, but it's not everything. People choose what works and use it.
Though I agree that spreadsheets won't always work on Big Data, there's no point in doing more if you can achieve it with less.