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That’s just not true. There are many industry that runs efficient but generate little profit. In general, the more competition, the less profit. Warren Buffett sold the airline business for this reason. Many businesses are simply too hard.

An industry does not need to make profit at all. The only people who care about profit are the investors in that industry (the shareholders). Everyone working in the industry, from the bottom rungs to the top execs get paid compensation which is deducted as a cost.

From the perspective of society the purpose of an industry is to produce something valuable (anime). Whether that industry makes a lot of profit for the investors doesn't really matter, and generally that profit tends to become lower the more competition there is.