There is nothing in the world more just than your level of intelligence or lack thereof, which is why I hate seeing people complain about it like they're poor little victims. General intelligence and know-how in specific areas is largely the result of your choices, although you don’t choose things like whether you’re born/raised in a way that emphasizes spatial reasoning or emotional intelligence, and whether you’re born within the average range for IQ or within the genius range. You don’t choose the quality of your school growing up or the attentiveness of your parents, which are also factors in your starting point and how easy or difficult it will be to reach high levels. Whether you achieve competency in any specific subject and whether or not you have specific information is fully within your control, though. Those things are the result of time and effort spent on gathering, applying, and developing intuition, nothing more.
Most information is either free or cheap, and it’s all easily accessible (in a book you can be given or ordered, on a website, available from people on request, etc), so there's no excuse for not developing. I can sympathize with it being hard to use or with having issues like depression that make retaining it or handling large quantities difficult. Past a point someone who’s terrible at mathematics shouldn’t be expected to work through that and choose engineering as a career, but they are absolutely capable of doing so – just at a very, very high cost. They’re also unlikely to be making breakthroughs in the field compared to the naturals, but they would be capable of the work. I have met these people.
I also meet a lot of people who don’t Google things, who don’t read, and who text on their goddamn phones while in a class or speaking to a tutor. I once had to help a student write a scholarship application and that phone was always out while I was trying to drive home some of the finer points of English grammar when you are trying to convince someone to give you money in exchange for studying. He almost certainly did not receive the scholarship and did not deserve it if he didn’t even consider it worth paying attention to, anyway, but I looked over an online friend’s sister’s long-ass application essay for a job teaching in Japan and made some notes for possible improvements. She has the interview and was among their top picks, and absolutely deserves the job or a fair shot at it.
Judging people based on inborn intelligence, their ability to use knowledge they haven’t used in a decade, whether or not they have low-priority information, or on how long it’s taking them to develop something is terrible, because that’s not within their control and it’s ridiculously costly for parents who work full-time jobs with three kids to know about every little thing from PC repair to the history of their city governor. To hell with willfully stupid people, though. Judge them all you want; they actively choose it for themselves.
Call me judgmental all you want, while we're at it… but at the same time you’re glad for it, even if you don’t know it yet. My attitude means people pass classes more easily with me sitting next to them or in their group because I actually read and pay attention, that they have someone to read and help prepare documents to their benefit because I care about dem shift keez, and that they'll have someone knowledgeable handling their data in the future instead of someone who just wants the equipment to be running so that they can get their paycheck and go home to watch television and text their friends. People need judgmental intellectuals to live their obnoxious, anti-intellectual lives and do as much of their work for them as possible. Heaven forbid their friend or boyfriend has to wait two hours to hear their reply to a text, after all.