It is necessary if we want earth to grow beautiful and humanity to become divine because in its present stage, man with the metal ego as the operating system cannot change much except implementing slightly better system with another. But if his nature doesn’t change and he remains subject to desires and ego then all systems and governments are naturally bound to fail. It is only through a further spiritual and supramental evolution that human nature can be transformed leading to lasting solutions to the problems our mind and desire-self has created. Of course if one wants to escape from this troubled field then transformation is not needed, only some sattwic change of Nature and picking one of the many roads to Nirvana or mukti is enough.
Affectionately,
Alok Da