# What does the lambda parameter in the paper "Interpretable Explanations of Black Boxes by Meaningful Perturbation" do?

I do not understand the purpose of the $$\lambda$$ parameter in equation 3 of the paper Interpretable Explanations of Black Boxes by Meaningful Perturbation.

$$m^{*}=\underset{m \in[0,1]^{\Lambda}}{\operatorname{argmin}} \lambda\|\mathbf{1}-m\|_{1}+f_{c}\left(\Phi\left(x_{0} ; m\right)\right) \tag{3}\label{3}$$

As far as I understand, the argmin function returns the $$m$$ for which the term $$\lambda\|\mathbf{1}-m\|_{1}$$ is smallest. If that's the case, I don't understand the purpose of $$\lambda$$, since it doesn't change the result of $$m$$.