Spend some time on GSK's site to find the following statements which adequately answer this question.
"Getting the balance right between responsible pricing and sustainable business is fundamental. We apply a value-based approach to balance reward for innovation with affordability; and price our medicines according to the benefit they bring to patients and health systems, measured by clinical, economic, and social outcomes. We collaborate with global health partners to increase our reach to patients in lower-income countries. We also recognise health inequities in higher-income countries and help uninsured and underinsured patients navigate healthcare systems, with programmes to increase access and provide financial and disease management support."

"Having worked for a company in marketing and sales where certain life-saving medications were often priced way out of reach of the common public, I embrace GSK's philosophy of striking the right balance between responsible pricing and sustainable business. To ensure accessibility, you must first ensure the research, development, and distribution are sustainable for these life-saving, or quality of life-enhancing, drugs. I greatly admire GSK's balanced approach; it was a great motivator for my pursuit of this position."