That's a non sequitur. A lot of "normal businesses" became big.
In any case, Apple didn't become big because they found a "loophole". They were on the brink of bunrupcty and become big because they put out product after product that people liked: the first iMac, the iPod, the iPhone, and the iPad.
And they didn't even compete on cheaper prices, undercuttting the competition by throwing VC money (a trick Amazon did): they did it while selling only on the higher end of the market, and charging the same or more than their PC/mobile competitors.
Oh, and for the most part they didn't even do it though marketing either. Their ad budget was laughable and less than half to 1/5th compared to competitors for the first 15 years. Heck, Samsung used double to triple Apple's ad budget, and Google used 1/2 Apple's budget on just a single phone product.
https://qz.com/103266/google-is-about-to-spend-half-of-apple...