If you want to become a data scientist - you should go for the predictive modeler certification from SAS. Base SAS certification would not benefit much and even advanced SAS certification is good to have.
You should focus heavily on understanding of statistical concepts, various algorithms, life cycle of analytics projects, steps required in data cleaning to prepare yourself for the role of data scientist.
Also, once you have developed expertise in SAS, it would help if you develop expertise in one of the open source languages i.e. R or Python.
Hope this helps.