That's not really what we're talking about here though. An apple isn't the same as an apple juice which isn't the same as an apple flavored candy, even you can appreciate the difference of processing in these simple examples.

A slab of beef isn't the same as a "burger patty*" where the meat is coming from 54 different pigs, including cartilages, tendons, skin &co and contains 12 additives coming from the petrochemical industry.

The same applies to vegetarians/vegan stuff, you can make a patty from beans at home with like 3 ingredients, or buy ready made patties containing hydrogenated trans fats, bad additives, food coloring, &c.