You're very correct........for me the reason why they relocate abroad is because of lack of unstable electricity supply when there's no steady light it limit access to some modern use for productive facilities.
Secondly no adequate support from the government making the tech to seek opportunities else where it also hinders to their growth so when they get a means to relocate they will gladly to it.
Low pay also drive them to relocate because the pay here are nothing to write home about.