People for development look at a mix of goals because
1) different people have different goals.
2) Income is not only the important factor leading to country'* development
3)The others factors like freedom,respect,peace,harmony are as much as important as the income is.
4) To achieve development we cannot only deal with monetary aspects , NON-MONETRY Aspects are also very crucial.
5) Moreover,for a good quality life and social,political and economical well being mix goals of development is necessary.