Should - I know it's the right thing to do, but nobody else follows the law, and doing so would put me at a competitive disadvantage.

Have to - I know it's the right thing to do, and if I don't, there's a good chance I'll get caught and fined heavily enough that it's not worth the risk.

Need to - rules are to be followed, and the alternative is massive fines and/or jail, plus disobeying might make me a social pariah.

Will - there is no alternative. (but I'm not sure that's actually true for Asia writ large).

"have to": If I don't, they'll shoot me

"need to": It is a moral imperative for me to do this

"WILL": Because of course this is the case