determine, tempt, act upon, regulate, shape, charm, impact, affect, effect, exert, more...

impede, hinder, obstruct, deter, counteract

peer pressure, authority, expertise, charisma, persuasion, manipulation, coercion, inspiration, more...

great, political, strongest, considerable, powerful, direct, important, little, significant, much, profound

make an impact,   powerful presence,   to affect,   power of hollywood,   have an effect on,   greatly affect,   have a say in,   range of power,   affect change,   exert power