As you can see, product owners should not prioritize based on a single parameter. While prioritizing, you should consider both value and risk. Always attack the high-risk, high-value functionality first and then progress to the low-risk, high-value functionality. Avoid the high-Risk, low-Value functionality until such a time that it is deemed a high-value. Apart from project management scope prioritization, a Scrum Master has several other responsibilities. Read the The Role Of a Scrum Master article for more information.
Going back to my cousin, it seems for him not having a laptop was:
* High Risk: Having his own laptop would mean he would not have to use a shared computer in the University labs.
* High Value: Through the laptop, he could easily make money to buy a motorbike.
Smart kid!