"Yep its very possible that these corporations want to get the vaccinations out as fast as possible because every day it is late, they will be making less money."
->Or you can think in this way too "every day it is late to make vaccine, there will be more people dead".

"The vaccines have not been approved by fda, which means they have not been thoroughly tested and examined by the fda. They have gotten emergency use authorization which only means some political process have authorized it. "
->Political plus scientific process. emergency use authorization is put in place for a reason like this. Not every drug is approved through EUA.
"Even pfizer has paid over 5 billions in fine because they have put out medicines without thorough testing, which were in fact approved by fda." .
->If an apple is rotten in a tree, the whole tree is rotten. That's how you think.
"Why seychelles a country with over 60% vaccinated is seeing a rising cases of covid?"
->You probably know this but seychellois got the chinese vaccine. I don't know a lot about chinese vaccine and what variant is found in the country.