And if you are unable to give 50% of your income, then who is pressing you? It is voluntary. If you have not got any means, then who is exacting you? So these things are specifically happening to you, not to others. There are so many grhasthas and they are not feeling any inconvenience. They have dedicated their lives to the service of the Lord. And most GBC members are householders. You also may be elected. The position is open to all grhasthas. But if you live separately with your wife and earn only for yourself and your wife, then how you expect to have a good position with the society? Everybody is earning for their wife and family, so if you are doing so also, then what is the difference between such endeavor and that of the karmi?
There are many grhasthas who are earning and spending for a particular center. Similarly you also can open a center, live separately as president and maintain the temple nicely. But if you don't do anything and simply remain grhastha, then what is the use of criticizing others? The whole movement is meant for rendering service.
(From Srila Prabhupada's letter to Umapati – Los Angeles 9 July, 1971)