I see the same data and come to the opposite conclusion. People with 10x my brain power can deal with dumb tools, verbose languages, a malicious codebase, architecture astronauts. I'm too stupid to do what they do, so I try to pick my battles and live where it's simple.
I'm not arguing for obsessing over tools, or for flamewars. But perhaps the dumber you are the more you should pay attention to foundations.
Books on pool and billiards will teach you how to execute a proper billiards shot. Every one of them, from Willie Mosconi's book of the 1940s to the very latest, will tell you that you should stroke the cue forward and back along a straight path, as if it were running in a groove, avoiding swerves, which will be difficult to control. You should particularly avoid swerving your cue and hand during the final delivery and follow-through.
But there are a few rare and precious films of Willie Hoppe, possibly the greatest billiards player of all time, who won fifty-one world titles at a time when billiards was one of the most popular sports in America and was played in every U.S. city by every gentleman of taste. Check out Willie Hoppe's billiard stroke, starting at about 1:10 in this YouTube video:
From this evidence, it would appear that Willie Hoppe ruled the world of billiards with the worst stroke ever known to man. His cue literally skews through a ten-degree angle between the start of his delivery and the end, and his hand twists too. Wikipedia sheds some light on this:
Hoppe's peculiar style of stroke was a result of his career as a child prodigy. He barely reached the table and had to stand on a box. In [his book] Hoppe emphatically advised players not to use his way of directing the cue.
The moral of this story is that grandmasters will take lousy tools and build amazing things, because they are grandmasters. We, on the other hand, are probably not grandmasters, may not want to invest tens of thousands of hours before we get some decent results, and will not actually be harmed if, at the start of our quest for grandmastery, we do ourselves a favor and get the best tools we can afford.
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(Having said all that: I may not personally like Java or Eclipse, but I can't believe they rank as bad tools. Tens of thousands of people are productive in them, many voluntarily. And consider that people used to write great games for the Atari 2600, for god's sake; Java on modern hardware is a dream come true by comparison.)
The best part of a good grad school is that, when it comes time to procrastinate, you'll have a card to a very good library.
Billiards is actually easy to learn about: Pick up any book by Robert Byrne (the canonical one is Byrne's Standard Book of Pool and Billiards; it can be found all over the place) and he'll be telling you all about it by the second half of the book; he can't help himself. Hoppe got name-dropped in there somewhere.
I should emphasize that my judgement of Hoppe's stroke quality is entirely my own (though it does jibe with the anonymous editors of Wikipedia) and is based on one or two videos like this one on YouTube. It is entirely possible that Hoppe was exaggerating his sloppy-looking stroke for the cameras; this was an exhibition after all.
(I can't actually play billiards, by the way, and I'm a bad pool player. You know how there are things which are more fun to read about than actually do? Billiards turns out to be like that for me: I'm not driven to practice. So many hobbies, so little time...)
I'm not arguing for obsessing over tools, or for flamewars. But perhaps the dumber you are the more you should pay attention to foundations.