They have to because the capitalist imperative of infinite, progressive growth forces them to constantly seek out additional speculative avenues for profit. The potential for a valuable product (stock) is more valuable than a good product and is cheaper to produce than a good product. Also, important to note that you are also a product in a surveillance capitalist state thaf commodifies every second of your day. The speculative value on more profitable avenues to source and sell your data has more speculative value than any value your patronage would generate.