Who benefits from a trademark?

The Registered Proprietor of a trademark can create establish and protect the goodwill of his products or services, he can stop other traders from unlawfully using his trademark, sue for damages and secure destruction of infringing goods and or labels.
The Government earns revenue as a fee for registration and protection of registration of trademarks
The Legal professionals render services to the entrepreneurs regarding selection registration and protection of trademarks and get remunerations for the same

The Purchaser and ultimately Consumers of goods and services get options to choose the best.