Apples to oranges comparison.
We know the healthcare system in Britain has been suffering from neglect for some time and AFAIK doctors often either work for the NHS or are independently contracted by them. Also, while Buc-ees technically a convenience store, it also a gas station (they held the record as the world largest with 120 gas pumps)with a large deli, tons of groceries, and the cleanest bathrooms you will ever find off the highway. They do a lot of business and have a large team of of very busy workers. Their income is well earned. That said, healthcare workers are very underpaid in Britain and have been for some time, but it's not fair to compare the incomes while trying to diminutize Buc-ees by simply labelling it as "convenience store".