Why advertisement funded companies are immoral

Companies which rely on advertising to function their are immoral. The reason why is that they hide the true cost of work from the customers of that company. They misrepresent the work done in order to render the service or create the product they offer. This in turn devalues work and the appreciation of the value created. It also obfuscates the decision process required to make an effective decision in regard to the value to the user. Both of which I think are immoral.