Either you don't understand how tax works in other countries or maybe wherever you come from it's different.
Where I come from, you don't get anything for the tax you pay, except whatever they choose to spend it on, which is (hopefully) for the good of the public, rather than lavish parties and war.
Social security payments are separate from tax - you pay those if you are working usually - and you get benefits, such as healthcare and pension.
Thailand is the same, pretty much.