and then use the proceeds, use the profits that you make from selling the product to make the product better.

然后用得到的钱，用销售产品的收入和利润来改进产品。

广告和价格的关系 - SpeakingMax英语口语达人

I think it's obviously preferable to improve the products and sell it that way

我觉得显然较好的是改进产品质量来卖，

广告和价格的关系 - SpeakingMax英语口语达人