They may not have known the circumstances you yourself have assumed. Many pirates live in 1st world nations.
Assuming this person has indeed (somehow) bought a Minecraft-running computer on 3.50/d, then the creator of this post had no possible way of knowing this, and should not be accused of apathy for mere ignorance
And the large possibility remains that this person could be living decently in rural California and just didn’t want to spend money.
Either way, the person you have accused of privilege should not be accused of something so severe for simple and faultless ignorance.
(But no, in that case it would not be morally wrong)